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Technical Data Sheet
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288999 — SEAL,PLAIN

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

288999: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-01-286-3477, 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
288999
NSN: 5330-01-286-3477
FSC: 5330 — Packing and Gasket Materials
CAGE: 28873 — ITW FOOD EQUIPMENT GROUP LLC DBA HOBART SERVICE (USA)
SPECIFICATIONS
Part Number288999
NSN5330-01-286-3477
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 288999 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 1
B-288999Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 288999?
288999 is a SEAL,PLAIN.
What parts can replace 288999?
There is 1 known substitute for 288999: B-288999. Substitute compatibility should be verified for your specific system.
What is the NSN for 288999?
288999 is cataloged in the U.S. Government catalog under NSN 5330-01-286-3477. This indicates validated use in U.S. government and defense supply chains.
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