PartsTable
Technical Data Sheet
120-287 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

CAP,PROTECTIVE,DUST AND MOISTURE. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-212-7721, 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
120-287
NSN: 5340-01-212-7721
FSC: 5340
CAGE: 68505 — PRESTOLITE ELECTRIC INC (USA)
SPECIFICATIONS
Part Number120-287
NSN5340-01-212-7721
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 120-287 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
3F1-10P1Upgraded Successor
successor cross-reference
successor
20237Upgraded Successor
successor cross-reference
successor
R10TYPEGUpgraded Successor
successor cross-reference
successor
LLH377317Upgraded Successor
successor cross-reference
successor
NAVY 1993 0815Upgraded Successor
successor cross-reference
successor
20287Upgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 120-287?
120-287 is a CAP,PROTECTIVE,DUST AND MOISTURE.
What parts can replace 120-287?
There are 16 known substitutes for 120-287: 3F1-10P1, 20237, R10TYPEG and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 120-287?
120-287 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-212-7721. This indicates validated use in U.S. government and defense supply chains.
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