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Technical Data Sheet
PartsTable / O-RING / HRW640888-8
HRW640888-8 ✓ 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 5331-00-265-1075, 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
HRW640888-8
NSN: 5331-00-265-1075
FSC: 5331 — O-RING
CAGE: 97783 — GENERAL STEEL TANK CO (USA)
SPECIFICATIONS
Part NumberHRW640888-8
NSN5331-00-265-1075
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: HRW640888-8 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 20
211-110Interchangeable
interchangeable cross-reference
interchangeable
OLDENInterchangeable
interchangeable cross-reference
interchangeable
A2329Interchangeable
interchangeable cross-reference
interchangeable
E29Interchangeable
interchangeable cross-reference
interchangeable
20323Interchangeable
interchangeable cross-reference
interchangeable
831-1213ITEM356Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HRW640888-8?
HRW640888-8 is a O-RING.
What parts can replace HRW640888-8?
There are 20 known substitutes for HRW640888-8: 211-110, OLDEN, A2329 and 17 more. Substitute compatibility should be verified for your specific system.
Is HRW640888-8 still available?
HRW640888-8 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026