PartsTable
Technical Data Sheet
52659 PIECE 20 ✓ 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 product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-381-4301, 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
52659 PIECE 20
NSN: 5331-01-381-4301
FSC: 5331 — O-RING
CAGE: 06550 — INGERSOLL-RAND CO MATERIAL HANDLING DIV (USA)
SPECIFICATIONS
Part Number52659 PIECE 20
NSN5331-01-381-4301
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 52659 PIECE 20 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 3
C140051Interchangeable
interchangeable cross-reference
interchangeable
154-3511Interchangeable
interchangeable cross-reference
interchangeable
C140.051Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 52659 PIECE 20?
52659 PIECE 20 is a O-RING.
What parts can replace 52659 PIECE 20?
There are 3 known substitutes for 52659 PIECE 20: C140051, 154-3511, C140.051. Substitute compatibility should be verified for your specific system.
What is the NSN for 52659 PIECE 20?
52659 PIECE 20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-381-4301. This indicates validated use in U.S. government and defense supply chains.
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