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90789-991 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

90789-991: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-01-163-4975, 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
90789-991
NSN: 5330-01-163-4975
FSC: 5330 — Packing and Gasket Materials
CAGE: 076M6 — AMZ ALABAMA INC. (USA)
SPECIFICATIONS
Part Number90789-991
NSN5330-01-163-4975
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 90789-991 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
SUBSTITUTES & CROSS-REFERENCES 4
21522115-420Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
010002Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HE010002Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
2152 2115-420 TAKR 287Reference 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 90789-991?
90789-991 is a PACKING,PREFORMED.
What parts can replace 90789-991?
There are 4 known substitutes for 90789-991: 21522115-420, 010002, HE010002 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 90789-991?
90789-991 is cataloged in the U.S. Government catalog under NSN 5330-01-163-4975. This indicates validated use in U.S. government and defense supply chains.
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