PartsTable
Technical Data Sheet
27767B ✓ 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

The O-RING is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-360-5357, 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
27767B
NSN: 5331-01-360-5357
FSC: 5331 — O-RING
CAGE: 57783 — CAT PUMPS CORP (USA)
SPECIFICATIONS
Part Number27767B
NSN5331-01-360-5357
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 27767B 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 8
27767Interchangeable
interchangeable cross-reference
interchangeable
25473NInterchangeable
interchangeable cross-reference
interchangeable
25473N PIECE 2Interchangeable
interchangeable cross-reference
interchangeable
624-107-27767Interchangeable
interchangeable cross-reference
interchangeable
235091Interchangeable
interchangeable cross-reference
interchangeable
710118-06Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 27767B?
27767B is a O-RING.
What parts can replace 27767B?
There are 8 known substitutes for 27767B: 27767, 25473N, 25473N PIECE 2 and 5 more. Substitute compatibility should be verified for your specific system.
Is 27767B still available?
27767B is currently cancelled.
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