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Technical Data Sheet
PartsTable / O-RING / DPW/9957
DPW/9957 ✓ 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 DPW/9957 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 5331-01-525-0160, 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
DPW/9957
NSN: 5331-01-525-0160
FSC: 5331 — O-RING
CAGE: 64678 — DAIMLER TRUCK NORTH AMERICA LLC (USA)
SPECIFICATIONS
Part NumberDPW/9957
NSN5331-01-525-0160
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DPW/9957 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
KEY FEATURES
•
CENTER HOLE DIAMETER: 0.500 INCHES NOMINAL IN
•
CROSS-SECTIONAL HEIGHT: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCY10 1/2ID X 1/8W O-RING W
CENTER HOLE DIAMETER0.500 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
END ITEM IDENTIFICATION2320-01-488-6962
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
CC1531666Interchangeable
interchangeable cross-reference
interchangeable
CFR40112Interchangeable
interchangeable cross-reference
interchangeable
9957Interchangeable
interchangeable cross-reference
interchangeable
SC12272683Interchangeable
interchangeable cross-reference
interchangeable
12272683Interchangeable
interchangeable cross-reference
interchangeable
11263Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DPW/9957?
DPW/9957 is a DPW/9957.
What parts can replace DPW/9957?
There are 11 known substitutes for DPW/9957: CC1531666, CFR40112, 9957 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DPW/9957?
DPW/9957 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-525-0160. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026