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12421421 — 12421421

✓ Government record, cited
U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM · ORING SEAL
PRODUCT OVERVIEW

12421421: 12421421.

The 12421421 is a U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM industrial component. This part is cataloged in the U.S. Government catalog under NSN 5340-01-454-7255, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
12421421
NSN: 5340-01-454-7255
FSC: 5340 — Hardware, Commercial
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
Part Number12421421
ManufacturerU S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
NSN5340-01-454-7255
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12421421 MFR: U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OUTSIDE/TOP FLANGE DIAMETER: 1.000 INCHES NOMINAL IN
•
COLOR: BLACK
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.500 INCHES NOMINAL IN
OUTSIDE/TOP FLANGE DIAMETER1.000 INCHES NOMINAL IN
COLORBLACK
MATERIALRUBBER CHLOROPRENE CLASS CR
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12421421?
12421421 is a 12421421 manufactured by U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM.
What is the NSN for 12421421?
12421421 is cataloged in the U.S. Government catalog under NSN 5340-01-454-7255. This indicates validated use in U.S. government and defense supply chains.
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