How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Hazardous Material Shipping Labels












Label hazardous materials with these D.O.T. and Limited Quantity paper labels.
D.O.T. labels may be used for international and domestic shipments.
D.O.T. vehicle signs are also available.
Message | Wd. | Ht. | Material | Roll Dia. | Core ID | Specifications Met | No. of Labels | Roll | ||
A | Exploding Bomb Symbol Explosive 1.3C—1 | 4" | 4" | Paper | 4 1/4" | 3" | D.O.T. 49CFR 172.400 (HM 181); IATA; ICAO; IMDG | 250 | 0000000 | 000000 |
B | Gas Cylinder Symbol Non-Flammable Gas—2 | 4" | 4" | Paper | 4 1/4" | 3" | D.O.T. 49CFR 172.400 (HM 181); IATA; ICAO; IMDG | 250 | 0000000 | 00000 |
C | Flame Symbol Flammable Gas—2 | 4" | 4" | Paper | 4 1/4" | 3" | D.O.T. 49CFR 172.400 (HM 181); IATA; ICAO; IMDG | 250 | 0000000 | 00000 |
D | Flame Symbol Flammable Liquid—3 | 4" | 4" | Paper | 4 1/4" | 3" | D.O.T. 49CFR 172.400 (HM 181); IATA; ICAO; IMDG | 250 | 0000000 | 00000 |
E | Flame Symbol Flammable Solid—4 | 4" | 4" | Paper | 4 1/4" | 3" | D.O.T. 49CFR 172.400 (HM 181); IATA; ICAO; IMDG | 250 | 0000000 | 00000 |
F | Flame Over Circle Symbol Oxidizer—5.1 | 4" | 4" | Paper | 4 1/4" | 3" | D.O.T. 49CFR 172.400 (HM 181); IATA; ICAO; IMDG | 250 | 0000000 | 00000 |
G | Poison—6 Skull and Crossbones Symbol | 4" | 4" | Paper | 4 1/4" | 3" | D.O.T. 49CFR 172.400 (HM 181); IATA; ICAO; IMDG | 250 | 0000000 | 00000 |
H | Skull and Crossbones Symbol Toxic—6 | 4" | 4" | Paper | 4 1/4" | 3" | D.O.T. 49CFR 172.400 (HM 181); IATA; ICAO; IMDG | 250 | 0000000 | 00000 |
J | Radioactive I—7 Radioactive Symbol | 4" | 4" | Paper | 4 1/4" | 3" | D.O.T. 49CFR 172.400 (HM 181); IATA; ICAO; IMDG | 250 | 0000000 | 00000 |
K | Corrosion Symbol Corrosive—8 | 4" | 4" | Paper | 4 1/4" | 3" | D.O.T. 49CFR 172.400 (HM 181); IATA; ICAO; IMDG | 250 | 0000000 | 00000 |
L | 9 | 4" | 4" | Paper | 4 1/4" | 3" | D.O.T. 49CFR 172.400 (HM 181) | 250 | 0000000 | 00000 |
M | Cargo Aircraft Only | 5" | 4 5/16" | Paper | 4 1/4" | 3" | D.O.T. 49CFR 172.400 (HM 181); IATA; ICAO; IMDG | 250 | 0000000 | 00000 |
D.O.T. Vehicle Signs
Alert surrounding traffic to the presence of hazardous materials. Mount plain-back signs in a sign holder (sold separately).

Ht. | Wd. | Material | Thick. | Each | |
Adhesive Back | |||||
---|---|---|---|---|---|
10 3/4" | 10 3/4" | Vinyl Plastic | 0.011" | 000000000 | 00000 |

Ht. | Wd. | Material | Thick. | Each | |
Adhesive Back | |||||
---|---|---|---|---|---|
10 3/4" | 10 3/4" | Vinyl Plastic | 0.011" | 000000000 | 00000 |

Ht. | Wd. | Material | Thick. | Each | |
Adhesive Back | |||||
---|---|---|---|---|---|
10 3/4" | 10 3/4" | Vinyl Plastic | 0.011" | 000000000 | 00000 |

Ht. | Wd. | Material | Thick. | Each | |
Adhesive Back | |||||
---|---|---|---|---|---|
10 3/4" | 10 3/4" | Vinyl Plastic | 0.011" | 000000000 | 00000 |

Ht. | Wd. | Material | Thick. | Each | |
Adhesive Back | |||||
---|---|---|---|---|---|
10 3/4" | 10 3/4" | Vinyl Plastic | 0.011" | 000000000 | 00000 |

Ht. | Wd. | Material | Thick. | Each | |
Adhesive Back | |||||
---|---|---|---|---|---|
10 3/4" | 10 3/4" | Vinyl Plastic | 0.0095" | 000000000 | 00000 |
Color-Coded Identification Rings for Low-Temperature
D.O.T. Push-to-Connect Tube Fittings for Air

Color-code your lines by snapping one of these rings over the release ring on low-temperature D.O.T. push-to-connect tube fittings. Often used in air brake lines for commercial trucks and trailers, they meet Department of Transportation FMVSS 571 safety standards.
For technical drawings and 3-D models, click on a part number.