Filter by
Pressure Class
System of Measurement
Fitting Connection
Fitting Material
Maximum Steam Pressure @ Temperature
For Use With
Specifications Met
Shape
Thread Type
For Fitting Schedule
Connects To
DFARS Specialty Metals
RoHS
About Pipe and Fittings
Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.
High-Pressure Stainless Steel Unthreaded Pipe Flanges
Forged Flanges
Pipe Size | Dash Size | Bolt Hole | 304/304L Stainless Steel | 316/316L Stainless Steel | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
(A) | (B) | (A) | (B) | Flanged Connection Surface (B) | Flange OD | For Bolt Dia. | Dia. | No. Of | Bolt Circle Dia. | Pressure Class | Max. Pressure @ Temp. | Max. Steam Pressure @ Temp. | Each | Each | ||||
Butt Weld | ||||||||||||||||||
| 1/2 | 1/2 | 08 | 08 | Raised | 3 3/4" | 1/2" | 0.625" | 4 | 2 5/8" | 300 | 600 psi @ 72° F | 415 psi @ 360° F | 4448T286 | 000000 | 4452T296 | 000000 | ||
| 3/4 | 3/4 | 12 | 12 | Raised | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 300 | 600 psi @ 72° F | 415 psi @ 360° F | 4448T287 | 00000 | 4452T297 | 00000 | ||
| 1 | 1 | 16 | 16 | Raised | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 300 | 600 psi @ 72° F | 415 psi @ 360° F | 4448T288 | 00000 | 4452T298 | 00000 | ||
| 1 1/4 | 1 1/4 | 20 | 20 | Raised | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 300 | 600 psi @ 72° F | 415 psi @ 360° F | 4448T289 | 000000 | 4452T299 | 000000 | ||
| 1 1/2 | 1 1/2 | 24 | 24 | Raised | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 300 | 600 psi @ 72° F | 415 psi @ 360° F | 4448T291 | 000000 | 4452T311 | 000000 | ||
| 2 | 2 | 32 | 32 | Raised | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 300 | 600 psi @ 72° F | 415 psi @ 360° F | 4448T292 | 000000 | 4452T312 | 000000 | ||
| 2 1/2 | 2 1/2 | 40 | 40 | Raised | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | 300 | 600 psi @ 72° F | 415 psi @ 360° F | 4448T293 | 000000 | 4452T313 | 000000 | ||
| 3 | 3 | 48 | 48 | Raised | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | 300 | 600 psi @ 72° F | 415 psi @ 360° F | 4448T294 | 000000 | 4452T314 | 000000 | ||
| 4 | 4 | 64 | 64 | Raised | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 300 | 600 psi @ 72° F | 415 psi @ 360° F | 4448T295 | 000000 | 4452T315 | 000000 | ||
| 6 | 6 | 96 | 96 | Raised | 12 1/2" | 3/4" | 0.875" | 12 | 10 5/8" | 300 | 600 psi @ 72° F | 415 psi @ 360° F | 4448T296 | 000000 | 4452T316 | 000000 | ||
Slip-On Weld Female | ||||||||||||||||||
| 1/2 | 1/2 | 08 | 08 | Raised | 3 3/4" | 1/2" | 0.625" | 4 | 2 5/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T251 | 00000 | 4452T261 | 00000 | ||
| 3/4 | 3/4 | 12 | 12 | Raised | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T252 | 00000 | 4452T262 | 00000 | ||
| 1 | 1 | 16 | 16 | Raised | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T253 | 00000 | 4452T263 | 00000 | ||
| 1 1/4 | 1 1/4 | 20 | 20 | Raised | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T254 | 00000 | 4452T264 | 000000 | ||
| 1 1/2 | 1 1/2 | 24 | 24 | Raised | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T255 | 000000 | 4452T265 | 000000 | ||
| 2 | 2 | 32 | 32 | Raised | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T256 | 000000 | 4452T266 | 000000 | ||
| 2 1/2 | 2 1/2 | 40 | 40 | Raised | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T257 | 000000 | 4452T267 | 000000 | ||
| 3 | 3 | 48 | 48 | Raised | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T258 | 000000 | 4452T268 | 000000 | ||
| 4 | 4 | 64 | 64 | Raised | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T259 | 000000 | 4452T269 | 000000 | ||
| 6 | 6 | 96 | 96 | Raised | 12 1/2" | 3/4" | 0.875" | 12 | 10 5/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T261 | 000000 | 4452T271 | 000000 | ||
| 8 | 8 | — | — | Raised | 15" | 7/8" | 1" | 12 | 13" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T43 | 000000 | ——— | 0 | ||
Socket-Connect Female | ||||||||||||||||||
| 1/2 | 1/2 | 08 | 08 | Raised | 3 3/4" | 1/2" | 0.625" | 4 | 2 5/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T264 | 00000 | 4452T274 | 00000 | ||
| 3/4 | 3/4 | 12 | 12 | Raised | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T265 | 00000 | 4452T275 | 00000 | ||
| 1 | 1 | 16 | 16 | Raised | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T266 | 00000 | 4452T276 | 00000 | ||
| 1 1/4 | 1 1/4 | 20 | 20 | Raised | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T267 | 000000 | 4452T277 | 000000 | ||
| 1 1/2 | 1 1/2 | 24 | 24 | Raised | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T268 | 00000 | 4452T278 | 000000 | ||
| 2 | 2 | 32 | 32 | Raised | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T269 | 000000 | 4452T279 | 000000 | ||
| 2 1/2 | 2 1/2 | 40 | 40 | Raised | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T271 | 000000 | ——— | 0 | ||
| 3 | 3 | 48 | 48 | Raised | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T272 | 000000 | 4452T282 | 000000 | ||
| 4 | 4 | 64 | 64 | Raised | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T273 | 000000 | 4452T283 | 000000 | ||
| 6 | 6 | 96 | 96 | Raised | 12 1/2" | 3/4" | 0.875" | 12 | 10 5/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T274 | 000000 | ——— | 0 | ||
Stub End | ||||||||||||||||||
| 3/4 | 3/4 | 12 | 12 | Flat | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T298 | 00000 | ——— | 0 | ||
| 1 | 1 | 16 | 16 | Flat | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T299 | 00000 | 4452T319 | 00000 | ||
| 1 1/2 | 1 1/2 | 24 | 24 | Flat | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T312 | 000000 | 4452T322 | 000000 | ||
| 2 | 2 | 32 | 32 | Flat | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T313 | 000000 | 4452T323 | 000000 | ||
| 2 1/2 | 2 1/2 | 40 | 40 | Flat | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T314 | 000000 | 4452T324 | 000000 | ||
| 3 | 3 | 48 | 48 | Flat | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T315 | 000000 | 4452T325 | 000000 | ||
| 4 | 4 | 64 | 64 | Flat | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T262 | 000000 | ——— | 0 | ||
| 6 | 6 | 96 | 96 | Flat | 12 1/2" | 3/4" | 0.875" | 12 | 10 5/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T263 | 000000 | ——— | 0 | ||
Forged Blind Flanges
Bolt Hole | 304/304L Stainless Steel | 316/316L Stainless Steel | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Dash Size | Flanged Connection Surface | Flange OD | For Bolt Dia. | Dia. | No. Of | Bolt Circle Dia. | Pressure Class | Max. Pressure @ Temp. | Max. Steam Pressure @ Temp. | Each | Each | ||||
Flanged | ||||||||||||||||
| 1/2 | 08 | Raised | 3 3/4" | 1/2" | 0.625" | 4 | 2 5/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T275 | 000000 | 4452T285 | 000000 | ||
| 3/4 | 12 | Raised | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T276 | 00000 | 4452T286 | 00000 | ||
| 1 | 16 | Raised | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T277 | 00000 | 4452T287 | 00000 | ||
| 1 1/4 | 20 | Raised | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T278 | 00000 | 4452T288 | 000000 | ||
| 1 1/2 | 24 | Raised | 6 1/8" | 3/4" | 0.875" | 4 | 4 1/2" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T279 | 000000 | 4452T289 | 000000 | ||
| 2 | 32 | Raised | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T281 | 000000 | 4452T291 | 000000 | ||
| 2 1/2 | 40 | Raised | 7 1/2" | 3/4" | 0.875" | 8 | 5 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T282 | 000000 | 4452T292 | 000000 | ||
| 3 | 48 | Raised | 8 1/4" | 3/4" | 0.875" | 8 | 6 5/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T283 | 000000 | 4452T293 | 000000 | ||
| 4 | 64 | Raised | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T284 | 000000 | 4452T294 | 000000 | ||
| 6 | 96 | Raised | 12 1/2" | 3/4" | 0.875" | 12 | 10 5/8" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T285 | 000000 | 4452T295 | 000000 | ||
| 8 | — | Raised | 15" | 7/8" | 1" | 12 | 13" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T48 | 000000 | 4452T116 | 000000 | ||
| 10 | — | Raised | 17 1/2" | 1" | 1.12" | 16 | 15 1/4" | 300 | 600 psi @ 72° F | 300 psi @ 360° F | 4448T49 | 000000 | ——— | 0 | ||
Stub-End Straight Adapters
![]() |
Straight Adapter |
304/304L Stainless Steel | 316/316L Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Wall Thk. | Flange OD | Construction | Pipe Schedule | Each | Each | |||
| 3/4 | 0.113" | 1 11/16" | Welded | 40 | 45605K652 | 000000 | ——— | 0 | |
| 1 | 0.133" | 2" | Welded | 40 | 45605K653 | 00000 | 45555K653 | 000000 | |
| 1 1/2 | 0.145" | 2 7/8" | Welded | 40 | 45605K655 | 00000 | 45555K655 | 00000 | |
| 2 | 0.154" | 3 5/8" | Welded | 40 | 45605K656 | 00000 | 45555K656 | 00000 | |
| 2 1/2 | 0.203" | 4 1/8" | Welded | 40 | 45605K657 | 00000 | 45555K657 | 00000 | |
| 3 | 0.216" | 5" | Welded | 40 | 45605K661 | 00000 | 45555K661 | 00000 | |
| 4 | 0.237" | 6 3/16" | Welded | 40 | 45605K663 | 00000 | ——— | 0 | |
| 6 | 0.28" | 8 1/2" | Welded | 40 | 45605K665 | 000000 | ——— | 0 | |
High-Pressure Stainless Steel Threaded Pipe Flanges
Forged Flanges
Pipe Size | Dash Size | Bolt Hole | 304/304L Stainless Steel | 316/316L Stainless Steel | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
(A) | (B) | (A) | (B) | Flanged Connection Surface (B) | Flange OD | For Bolt Dia. | Dia. | No. Of | Bolt Circle Dia. | Pressure Class | Max. Pressure @ Temp. | Max. Steam Pressure @ Temp. | Each | Each | ||||
NPT Female | ||||||||||||||||||
| 1/2 | 1/2 | 08 | 08 | Raised | 3 3/4" | 1/2" | 0.62" | 4 | 2 5/8" | 300 | 600 psi @ 72° F | 300 psi @ 300° F | 7977K11 | 000000 | 7469T31 | 000000 | ||
| 3/4 | 3/4 | 12 | 12 | Raised | 4 5/8" | 5/8" | 0.75" | 4 | 3 1/4" | 300 | 600 psi @ 72° F | 300 psi @ 300° F | 7977K12 | 00000 | 7469T32 | 00000 | ||
| 1 | 1 | 16 | 16 | Raised | 4 7/8" | 5/8" | 0.75" | 4 | 3 1/2" | 300 | 600 psi @ 72° F | 300 psi @ 300° F | 7977K13 | 00000 | 7469T33 | 00000 | ||
| 1 1/4 | 1 1/4 | 20 | 20 | Raised | 5 1/4" | 5/8" | 0.75" | 4 | 3 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 300° F | 7977K14 | 00000 | 7469T34 | 000000 | ||
| 1 1/2 | 1 1/2 | 24 | 24 | Raised | 6 1/8" | 3/4" | 0.88" | 4 | 4 1/2" | 300 | 600 psi @ 72° F | 300 psi @ 300° F | 7977K15 | 00000 | 7469T35 | 000000 | ||
| 2 | 2 | 32 | 32 | Raised | 6 1/2" | 5/8" | 0.75" | 8 | 5" | 300 | 600 psi @ 72° F | 300 psi @ 300° F | 7977K16 | 00000 | 7469T36 | 000000 | ||
| 2 1/2 | 2 1/2 | 40 | 40 | Raised | 7 1/2" | 3/4" | 0.88" | 8 | 5 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 300° F | 7977K17 | 000000 | 7469T37 | 000000 | ||
| 3 | 3 | 48 | 48 | Raised | 8 1/4" | 3/4" | 0.88" | 8 | 6 5/8" | 300 | 600 psi @ 72° F | 300 psi @ 300° F | 7977K18 | 000000 | 7469T38 | 000000 | ||
| 4 | 4 | 64 | 64 | Raised | 10" | 3/4" | 0.875" | 8 | 7 7/8" | 300 | 600 psi @ 72° F | 300 psi @ 300° F | 7977K19 | 000000 | 7469T39 | 000000 | ||
Flange Unions
Butt Weld × Flanged
Bolt Hole | Port | For 316/316L Stainless Steel Fittings | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Construction | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Pipe Size | No. of | Includes | Specs. Met | For Use With | Temp. | Pressure Class | For Pipe Material | Each | ||
| 3/4 | Seamless | 4 5/8" | 5/8" | 11/16" | 4 | 3 1/4" | 1/2 | 2 | Gaskets, Jack Bolts, Nuts, Port Plugs, Threaded Rods | — | Air, Natural Gas, Oil, Water | Not Rated | 300 | 316/316L Stainless Steel | 5291N24 | 0000000 | |
| 1 | Seamless | 4 7/8" | 5/8" | 11/16" | 4 | 3 1/2" | 1/2 | 2 | Gaskets, Jack Bolts, Nuts, Port Plugs, Threaded Rods | ASME B16.36 | Air, Natural Gas, Oil, Water | Not Rated | 300 | 316/316L Stainless Steel | 5291N25 | 000000 | |
| 1 1/2 | Seamless | 6 1/8" | 3/4" | 13/16" | 4 | 4 1/2" | 1/2 | 2 | Gaskets, Jack Bolts, Nuts, Port Plugs, Threaded Rods | ASME B16.36 | Air, Natural Gas, Oil, Water | Not Rated | 300 | 316/316L Stainless Steel | 5291N26 | 000000 | |
| 2 | Seamless | 6 1/2" | 5/8" | 11/16" | 8 | 5" | 1/2 | 2 | Gaskets, Jack Bolts, Nuts, Port Plugs, Threaded Rods | ASME B16.36 | Air, Natural Gas, Oil, Water | Not Rated | 300 | 316/316L Stainless Steel | 5291N27 | 000000 | |
| 3 | Seamless | 8 1/4" | 3/4" | 13/16" | 8 | 6 9/16" | 1/2 | 2 | Gaskets, Jack Bolts, Nuts, Port Plugs, Threaded Rods | ASME B16.36 | Air, Natural Gas, Oil, Water | Not Rated | 300 | 316/316L Stainless Steel | 5291N28 | 000000 | |
| 4 | Seamless | 10" | 3/4" | 13/16" | 8 | 7 7/8" | 1/2 | 2 | Gaskets, Jack Bolts, Nuts, Port Plugs, Threaded Rods | ASME B16.36 | Air, Natural Gas, Oil, Water | Not Rated | 300 | 316/316L Stainless Steel | 5291N29 | 00000000 | |
Slip-On Weld × Flanged
Bolt Hole | Port | For 316/316L Stainless Steel Fittings | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pipe Size | Flange OD | For Bolt Dia. | Dia. | No. of | Bolt Circle Dia. | Pipe Size | No. of | Includes | Specs. Met | For Use With | Temp. | Pressure Class | For Pipe Material | Each | ||
| 3/4 | 4 5/8" | 5/8" | 11/16" | 4 | 3 1/4" | 1/2 | 2 | Gaskets, Jack Bolts, Nuts, Port Plugs, Threaded Rods | — | Air, Natural Gas, Oil, Water | Not Rated | 300 | 316/316L Stainless Steel | 5291N31 | 0000000 | |
| 1 | 4 7/8" | 5/8" | 11/16" | 4 | 3 1/2" | 1/2 | 2 | Gaskets, Jack Bolts, Nuts, Port Plugs, Threaded Rods | ASME B16.36 | Air, Natural Gas, Oil, Water | Not Rated | 300 | 316/316L Stainless Steel | 5291N32 | 000000 | |
| 1 1/2 | 6 1/8" | 3/4" | 13/16" | 4 | 4 1/2" | 1/2 | 2 | Gaskets, Jack Bolts, Nuts, Port Plugs, Threaded Rods | ASME B16.36 | Air, Natural Gas, Oil, Water | Not Rated | 300 | 316/316L Stainless Steel | 5291N33 | 000000 | |
| 2 | 6 1/2" | 5/8" | 11/16" | 8 | 5" | 1/2 | 2 | Gaskets, Jack Bolts, Nuts, Port Plugs, Threaded Rods | ASME B16.36 | Air, Natural Gas, Oil, Water | Not Rated | 300 | 316/316L Stainless Steel | 5291N34 | 000000 | |
| 3 | 8 1/4" | 3/4" | 13/16" | 8 | 6 9/16" | 1/2 | 2 | Gaskets, Jack Bolts, Nuts, Port Plugs, Threaded Rods | ASME B16.36 | Air, Natural Gas, Oil, Water | Not Rated | 300 | 316/316L Stainless Steel | 5291N35 | 00000000 | |
| 4 | 10" | 3/4" | 13/16" | 8 | 7 7/8" | 1/2 | 2 | Gaskets, Jack Bolts, Nuts, Port Plugs, Threaded Rods | ASME B16.36 | Air, Natural Gas, Oil, Water | Not Rated | 300 | 316/316L Stainless Steel | 5291N36 | 00000000 | |






































