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PartsTable / COMPONENT / DD-4531 REF NO 4
DD-4531 REF NO 4 ✓ 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 RETAINER,SEAL 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 5330-01-487-3129, 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
DD-4531 REF NO 4
NSN: 5330-01-487-3129
FSC: 5330
CAGE: 53424 — CUNICO CORPORATION (USA)
SPECIFICATIONS
Part NumberDD-4531 REF NO 4
NSN5330-01-487-3129
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DD-4531 REF NO 4 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 15
9031Interchangeable
interchangeable cross-reference
interchangeable
A02HS050-1Interchangeable
interchangeable cross-reference
interchangeable
3582-01-9020Interchangeable
interchangeable cross-reference
interchangeable
9020Interchangeable
interchangeable cross-reference
interchangeable
1T15M-0Interchangeable
interchangeable cross-reference
interchangeable
90762Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DD-4531 REF NO 4?
DD-4531 REF NO 4 is a RETAINER,SEAL.
What parts can replace DD-4531 REF NO 4?
There are 15 known substitutes for DD-4531 REF NO 4: 9031, A02HS050-1, 3582-01-9020 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DD-4531 REF NO 4?
DD-4531 REF NO 4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-487-3129. 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