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Technical Data Sheet
PartsTable / COMPONENT / DD5276
DD5276 ✓ 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 GASKET 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 5330-00-146-7447, 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
DD5276
NSN: 5330-00-146-7447
FSC: 5330
CAGE: 81601 — NORFOLK NAVAL SHIPYARD (USA)
SPECIFICATIONS
Part NumberDD5276
NSN5330-00-146-7447
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DD5276 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 17
05018Interchangeable
interchangeable cross-reference
interchangeable
23BR237112Interchangeable
interchangeable cross-reference
interchangeable
5018Interchangeable
interchangeable cross-reference
interchangeable
HC112Interchangeable
interchangeable cross-reference
interchangeable
2129Interchangeable
interchangeable cross-reference
interchangeable
4L720Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DD5276?
DD5276 is a GASKET.
What parts can replace DD5276?
There are 17 known substitutes for DD5276: 05018, 23BR237112, 5018 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DD5276?
DD5276 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-146-7447. 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