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A00401 ✓ 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 material: COPPER OVERALL, special_features: SIZE 1/4 INCH, BOX 100, UNV. NUMBER B2-4 IN, part_name_assigned_by_controlling_agency: COPPER FLARE GASKET.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-702-2079, 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
A00401
NSN: 5330-00-702-2079
FSC: 5330
CAGE: 41947 — MUELLER BRASS CO. (USA)
SPECIFICATIONS
materialCOPPER OVERALL
special_featuresSIZE 1/4 INCH, BOX 100, UNV. NUMBER B2-4 IN
part_name_assigned_by_controlling_agencyCOPPER FLARE GASKET
NSN5330-00-702-2079
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A00401 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 21
A401Interchangeable
interchangeable cross-reference
interchangeable
11K1821ITEM3FInterchangeable
interchangeable cross-reference
interchangeable
11K1983ITEM9FInterchangeable
interchangeable cross-reference
interchangeable
KIPPERInterchangeable
interchangeable cross-reference
interchangeable
A24Interchangeable
interchangeable cross-reference
interchangeable
A2124Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A00401?
A00401 is a GASKET.
What parts can replace A00401?
There are 21 known substitutes for A00401: A401, 11K1821ITEM3F, 11K1983ITEM9F and 18 more. Substitute compatibility should be verified for your specific system.
Is A00401 still available?
A00401 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