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Technical Data Sheet
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R90658 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

R90658: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: EXHAUST MANIFOLD PORT GASKET. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-292-2440, 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
R90658
NSN: 5330-01-292-2440
FSC: 5330 — Packing and Gasket Materials
CAGE: ZB955 — RDO EQUIPMENT RDO EQUIPMENT PTY LTD (AUS)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyEXHAUST MANIFOLD PORT GASKET
NSN5330-01-292-2440
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: R90658 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
PART NAME ASSIGNED BY CONTROLLING AGENCYEXHAUST MANIFOLD PORT GASKET
SUBSTITUTES & CROSS-REFERENCES 3
R521439Reference document
Same NSN cross-reference
Reference document — Secondary reference
223547Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
3000310-002Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R90658?
R90658 is a GASKET.
What parts can replace R90658?
There are 3 known substitutes for R90658: R521439, 223547, 3000310-002. Substitute compatibility should be verified for your specific system.
What is the NSN for R90658?
R90658 is cataloged in the U.S. Government catalog under NSN 5330-01-292-2440. This indicates validated use in U.S. government and defense supply chains.
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