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90777-991 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

90777-991: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include special_features: PACKING,PREFORMED USED IN STEERING UNIT NSN 2530-01-229-0844. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-247-6756, 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
90777-991
NSN: 5330-01-247-6756
FSC: 5330 — Packing and Gasket Materials
CAGE: 0BAT5 — U.S. DEFENSE SERVICES, INC. DBA USDS (USA)
SPECIFICATIONS
special_featuresPACKING,PREFORMED USED IN STEERING UNIT NSN 2530-01-229-0844
NSN5330-01-247-6756
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 90777-991 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESPACKING,PREFORMED USED IN STEERING UNIT NSN 2530-01-229-0844
SUBSTITUTES & CROSS-REFERENCES 4
451-0979Reference document
Same NSN cross-reference
Reference document — Informative reference only
HE010185Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
010185Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2152 2115-710Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 90777-991?
90777-991 is a PACKING,PREFORMED.
What parts can replace 90777-991?
There are 4 known substitutes for 90777-991: 451-0979, HE010185, 010185 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 90777-991?
90777-991 is cataloged in the U.S. Government catalog under NSN 5330-01-247-6756. This indicates validated use in U.S. government and defense supply chains.
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