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5278-0013 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5278-0013: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, outside_diameter: 0.555 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN, center_hole_diameter: 0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN, end_item_identification: MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); ARMORED MULTI-PURPOSE VEHICLE (AMPV). This part is cataloged in the U.S.

Government catalog under NSN 5331-00-684-3420, 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
5278-0013
NSN: 5331-00-684-3420
NIINs: 006843420, 011704977
FSC: 5331 — O-ring
CAGE: 33525 — KIDDE INC WALTER KIDDE DIV (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
outside_diameter0.555 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN
center_hole_diameter0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
end_item_identificationMULTIPLE LAUNCH ROCKET SYSTEM (MLRS); ARMORED MULTI-PURPOSE VEHICLE (AMPV)
NSN5331-00-684-3420
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5278-0013 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: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.555 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.555 INCHES MINIMUM AND 0.577 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONMULTIPLE LAUNCH ROCKET SYSTEM (MLRS); ARMORED MULTI-PURPOSE VEHICLE (AMPV)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 10
MS28775-013Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
19485Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
16606A79-89Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
1446-13Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
547309Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
PRP013C0MP7377Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Shelf-life managedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5278-0013?
5278-0013 is a O-RING.
What parts can replace 5278-0013?
There are 10 known substitutes for 5278-0013: MS28775-013, 19485, 16606A79-89 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5278-0013?
5278-0013 is cataloged in the U.S. Government catalog under NSN 5331-00-684-3420. This indicates validated use in U.S. government and defense supply chains.
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