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12421890 O-RING B — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12421890 O-RING B: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, center_hole_diameter: 0.864 INCHES NOMINAL IN, cross-sectional_height: 0.070 INCHES NOMINAL IN, end_item_identification: TRUCK, TRAILER, NSN 2320-01-355-4332; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS), material_document_and_classification: ASTM D2000 ASSN STD SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-466-0354, 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
12421890 O-RING B
NSN: 5331-01-466-0354
FSC: 5331 — O-ring
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
center_hole_diameter0.864 INCHES NOMINAL IN
cross-sectional_height0.070 INCHES NOMINAL IN
end_item_identificationTRUCK, TRAILER, NSN 2320-01-355-4332; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
material_document_and_classificationASTM D2000 ASSN STD SINGLE MATERIAL RESPONSE
NSN5331-01-466-0354
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12421890 O-RING B MFR: OEM ⚠ 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
•
CROSS-SECTIONAL HEIGHT: 0.070 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000 ASSN STD SINGLE MATERIAL RESPONSE
•
CENTER HOLE DIAMETER: 0.864 INCHES NOMINAL IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.070 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000 ASSN STD SINGLE MATERIAL RESPONSE
CENTER HOLE DIAMETER0.864 INCHES NOMINAL IN
END ITEM IDENTIFICATIONTRUCK, TRAILER, NSN 2320-01-355-4332; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
MATERIALRUBBER FLUOROCARBON CLASS FPM
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12421890 O-RING B?
12421890 O-RING B is a O-RING.
What is the NSN for 12421890 O-RING B?
12421890 O-RING B is cataloged in the U.S. Government catalog under NSN 5331-01-466-0354. This indicates validated use in U.S. government and defense supply chains.
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