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Technical Data Sheet
PartsTable / COMPONENT / NT7821PC11
NT7821PC11 ✓ 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. Key specifications include overall_width: 2.500 INCHES NOMINAL IN, overall_length: 12.156 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-551-3737, 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
NT7821PC11
NSN: 5330-00-551-3737
FSC: 5330
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
overall_width2.500 INCHES NOMINAL IN
overall_length12.156 INCHES NOMINAL IN
NSN5330-00-551-3737
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: NT7821PC11 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
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH12.156 INCHES NOMINAL IN
OVERALL WIDTH2.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
AS18628Interchangeable
interchangeable cross-reference
interchangeable
18628Interchangeable
interchangeable cross-reference
interchangeable
620-742-5Interchangeable
interchangeable cross-reference
interchangeable
678654-5Interchangeable
interchangeable cross-reference
interchangeable
678954-5Interchangeable
interchangeable cross-reference
interchangeable
94S25Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NT7821PC11?
NT7821PC11 is a GASKET.
What parts can replace NT7821PC11?
There are 16 known substitutes for NT7821PC11: AS18628, 18628, 620-742-5 and 13 more. Substitute compatibility should be verified for your specific system.
Is NT7821PC11 still available?
NT7821PC11 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