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About Stainless Steel
More
Impact-Resistant 440A Stainless Steel
440A stainless steel resists damage from impact and abrasion.
Balls are hollow. Use them in floats and ball valves. They maintain their corrosion resistance in temperatures up to 250° F.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
Balls
- Yield Strength: Not Rated
- Hardness: Rockwell C55 (Very Hard)
- Heat Treatment: Hardened
- Specifications Met: SAE AMS-QQ-S-763
| Dia. | Dia. Tolerance | Mechanical Finish | Magnetic Properties | Each | |
Mirror-Like | |||||
|---|---|---|---|---|---|
| 1" | -0.005" to 0.005" | Tumbled | Magnetic | 0000000 | 000000 |
Floats for Threaded Rods
Ball Stainless Steel, Copper, And Steel
Oblong Stainless Steel And Copper
Connect these floats to threaded float rods (not included). Use them to replace an existing float or combine with rods and float valve bodies (not included) to build a float valve.
Stainless steel floats have excellent corrosion resistance and are for use with water and oil.
304 Stainless Steel Ball Floats
| Dia. | Thread Size  | Pipe Size | Thread Type | Max. Pressure, psi | Temp. Range, °F | Gauge | For Container Type | Each | |
| 2" | 8-32 | __ | UNC | 750 | -30° to 225° | 25 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 2" | 1/4"-20 | __ | UNC | 750 | -30° to 225° | 25 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 2 1/2" | 1/4"-20 | __ | UNC | 375 | -30° to 225° | 24 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 2 3/4" | 1/4"-20 | __ | UNC | 250 | -30° to 225° | 26 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 3" | 1/4"-20 | __ | UNC | 150 | -30° to 225° | 26 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 3" | 1/4"-20 | __ | UNC | 750 | -30° to 225° | 21 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 3 1/4" | 1/4"-20 | __ | UNC | 250 | -30° to 225° | 24 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 3 1/2" | __ | 1/8 | NPT | 250 | -30° to 225° | 24 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 3 1/2" | __ | 1/8 | NPT | 750 | -30° to 225° | 21 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 4" | __ | 1/8 | NPT | 112 | -30° to 225° | 24 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 4" | __ | 1/8 | NPT | 750 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 4 1/2" | __ | 1/8 | NPT | 562 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 5" | __ | 1/4 | NPT | 675 | -30° to 225° | 19 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 5" | 1/4"-20 | __ | UNC | 337 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 6" | __ | 1/4 | NPT | 300 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 6" | __ | 1/4 | NPT | 450 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 6" | 1/4"-20 | __ | UNC | 450 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 6" | 3/8"-16 | __ | UNC | 300 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 7" | __ | 3/8 | NPT | 250 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 7" | __ | 3/8 | NPT | 350 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 8" | __ | 3/8 | NPT | 175 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 8" | __ | 3/8 | NPT | 275 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 10" | __ | 3/8 | NPT | 200 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 10" | __ | 3/8 | NPT | 300 | -30° to 225° | 14 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 12" | __ | 3/8 | NPT | 250 | -30° to 225° | 14 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 14" | __ | 1/2 | NPT | 160 | -30° to 225° | 14 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
304 Stainless Steel Oblong Floats
| Dia. | Lg. | Thread Size | Pipe Size | Thread Type | Max. Pressure, psi | Temp. Range, °F | Gauge | For Container Type | Each | |
| 2 1/2" | 4" | 1/4"-20 | __ | UNC | 75 | -30° to 225° | 26 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 3" | 5" | 1/4"-20 | __ | UNC | 137 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 3" | 6" | 1/4"-20 | __ | UNC | 137 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 3" | 7" | 1/4"-20 | __ | UNC | 150 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 4" | 6" | __ | 1/4 | NPT | 125 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 4" | 7" | 1/4"-20 | __ | UNC | 150 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 6" | 8" | __ | 1/4 | NPT | 125 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
316 Stainless Steel Ball Floats
| Dia. | Thread Size | Pipe Size | Thread Type | Max. Pressure, psi | Temp. Range, °F | Gauge | For Container Type | Each | |
| 2" | 8-32 | __ | UNC | 750 | -30° to 225° | 25 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 2" | 1/4"-20 | __ | UNC | 750 | -30° to 225° | 25 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 2" | 10-32 | __ | UNF | 210 | 35° to 210° | 24 ga. | Open Tank | 0000000 | 00000 |
| 2 1/2" | 1/4"-20 | __ | UNC | 375 | -30° to 225° | 24 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 3" | 1/4"-20 | __ | UNC | 150 | -30° to 225° | 26 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 3" | 1/4"-20 | __ | UNC | 750 | -30° to 225° | 21 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 3 1/4" | 1/4"-20 | __ | UNC | 250 | -30° to 225° | 24 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 3 1/2" | __ | 1/8 | NPT | 250 | -30° to 225° | 24 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 3 1/2" | __ | 1/8 | NPT | 750 | -30° to 225° | 21 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 4" | __ | 1/8 | NPT | 112 | -30° to 225° | 24 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 4" | __ | 1/8 | NPT | 750 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 4" | 1/4"-20 | __ | UNF | 175 | 35° to 210° | 22 ga. | Open Tank | 0000000 | 00000 |
| 4 1/2" | __ | 1/8 | NPT | 562 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 5" | __ | 1/4 | NPT | 675 | -30° to 225° | 19 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 5" | 1/4"-20 | __ | UNC | 175 | 35° to 210° | 22 ga. | Open Tank | 0000000 | 000000 |
| 5" | 1/4"-20 | __ | UNC | 275 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 6" | __ | 1/4 | NPT | 300 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 6" | __ | 1/4 | NPT | 450 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 6" | 1/4"-20 | __ | UNC | 450 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 6" | 3/8"-16 | __ | UNC | 300 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 7" | __ | 3/8 | NPT | 250 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 7" | __ | 3/8 | NPT | 350 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 8" | __ | 3/8 | NPT | 175 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 8" | __ | 3/8 | NPT | 275 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 8" | __ | 3/8 | NPT | 425 | -30° to 225° | 14 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 9" | __ | 3/8 | NPT | 250 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 10" | __ | 3/8 | NPT | 175 | 35° to 210° | 18 ga. | Open Tank | 0000000 | 000000 |
| 10" | __ | 3/8 | NPT | 300 | -30° to 225° | 14 ga. | Open Tank, Closed Tank | 0000000 | 00000000 |
| 12" | __ | 3/8 | NPT | 250 | -30° to 225° | 14 ga. | Open Tank, Closed Tank | 0000000 | 00000000 |
316 Stainless Steel Oblong Floats
| Dia. | Lg. | Thread Size | Pipe Size | Thread Type | Max. Pressure, psi | Temp. Range, °F | Gauge | For Container Type | Each | |
| 2 1/2" | 4" | 1/4"-20 | __ | UNC | 75 | -30° to 225° | 26 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 3" | 5" | 1/4"-20 | __ | UNC | 137 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 3" | 6" | 1/4"-20 | __ | UNC | 137 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 3" | 7" | 1/4"-20 | __ | UNC | 112 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 4" | 6" | __ | 1/4 | NPT | 125 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 4" | 7" | 1/4"-20 | __ | UNC | 100 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 6" | 8" | __ | 1/4 | NPT | 125 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
Floats without Connections
These floats are untethered by a float rod so they can float freely in your tank.
316 stainless steel floats are more corrosion resistant than 304 stainless steel floats.
For technical drawings and 3-D models, click on a part number.
| Dia. | Max. Pressure, psi | Temp. Range, °F | Gauge | For Container Type | Each | |
304 Stainless Steel Ball Floats—For Use With Hydraulic Fluid, Oil, Water | ||||||
|---|---|---|---|---|---|---|
| 2" | 250 | -30° to 225° | 26 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 3" | 250 | -30° to 225° | 24 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 4" | 375 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 5" | 500 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 6" | 450 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 8" | 275 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 10" | 200 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 12" | 150 | -30° to 225° | 14 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
316 Stainless Steel Ball Floats—For Use With Hydraulic Fluid, Oil, Water | ||||||
| 2" | 250 | -30° to 225° | 26 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 3" | 250 | -30° to 225° | 24 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 4" | 375 | -30° to 225° | 20 ga. | Open Tank, Closed Tank | 0000000 | 00000 |
| 5" | 500 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 6" | 450 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 8" | 275 | -30° to 225° | 18 ga. | Open Tank, Closed Tank | 0000000 | 000000 |
| 12" | 150 | -30° to 225° | 14 ga. | Open Tank, Closed Tank | 0000000 | 00000000 |
Through-Hole Floats
Ball
The through-hole connection allows these floats to slide up and down a vertical float rod (not included). Use clamps (not included) to set them in a fixed position.
Stainless steel floats are more corrosion resistant than copper floats.
For technical drawings and 3-D models, click on a part number.
304 Stainless Steel Ball Floats—For Use With Water
| Dia. | Through Hole Dia. | Max. Pressure, psi | Temp. Range, °F | Gauge | For Container Type | Each | |
| 2" | 1/4" | 300 | -30° to 225° | 24 ga. | Open Tank | 0000000 | 000000 |
304 Stainless Steel Ball Floats—For Use With Water and Hydraulic Fluid
| Dia. | Through Hole Dia. | Max. Pressure, psi | Temp. Range, °F | Gauge | For Container Type | Each | |
| 3" | 1/4" | 250 | -30° to 225° | 24 ga. | Open Tank | 0000000 | 000000 |
| 4" | 1/4" | 500 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 00000 |
| 4" | 3/8" | 500 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 00000 |
| 5" | 3/8" | 400 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 00000 |
| 6" | 1/4" | 150 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
| 6" | 3/8" | 150 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
| 6" | 1/2" | 150 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
| 7" | 3/8" | 150 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
| 8" | 3/8" | 150 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
| 8" | 1/2" | 150 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
316 Stainless Steel Ball Floats—For Use With Water
| Dia. | Through Hole Dia. | Max. Pressure, psi | Temp. Range, °F | Gauge | For Container Type | Each | |
| 2" | 1/4" | 300 | -30° to 225° | 24 ga. | Open Tank | 0000000 | 000000 |
316 Stainless Steel Ball Floats—For Use With Water and Hydraulic Fluid
| Dia. | Through Hole Dia. | Max. Pressure, psi | Temp. Range, °F | Gauge | For Container Type | Each | |
| 3" | 1/4" | 250 | -30° to 225° | 24 ga. | Open Tank | 0000000 | 000000 |
| 4" | 1/4" | 500 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
| 4" | 3/8" | 500 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
| 5" | 3/8" | 400 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
| 6" | 1/4" | 150 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
| 6" | 3/8" | 150 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
| 6" | 1/2" | 150 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
| 7" | 3/8" | 150 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
| 8" | 3/8" | 150 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |
| 8" | 1/2" | 150 | -30° to 225° | 20 ga. | Open Tank | 0000000 | 000000 |