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3A20138 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3A20138: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR, hardness_rating: 90.0 SHORE DUROMETER A NOMINAL, end_item_identification: 4X4 65 TON CRANE, part_name_assigned_by_controlling_agency: AIR CLEANER COVER O-RING. This part is cataloged in the U.S.

Government catalog under NSN 5331-01-567-4498, 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
3A20138
NSN: 5331-01-567-4498
FSC: 5331 — O-ring
CAGE: 2Y614 — LINK-BELT CRANES, L.P., LLLP (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
hardness_rating90.0 SHORE DUROMETER A NOMINAL
end_item_identification4X4 65 TON CRANE
part_name_assigned_by_controlling_agencyAIR CLEANER COVER O-RING
NSN5331-01-567-4498
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3A20138 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
•
HARDNESS RATING: 90.0 SHORE DUROMETER A NOMINAL
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
HARDNESS RATING90.0 SHORE DUROMETER A NOMINAL
PART NAME ASSIGNED BY CONTROLLING AGENCYAIR CLEANER COVER O-RING
END ITEM IDENTIFICATION4X4 65 TON CRANE
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3A20138?
3A20138 is a O-RING.
What is the NSN for 3A20138?
3A20138 is cataloged in the U.S. Government catalog under NSN 5331-01-567-4498. This indicates validated use in U.S. government and defense supply chains.
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