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PartsTable / COMPONENT / UL321-1 PIECE 25A
UL321-1 PIECE 25A ✓ 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: RUBBER SYNTHETIC OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-201-9415, 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
UL321-1 PIECE 25A
NSN: 5330-01-201-9415
FSC: 5330
CAGE: 20049 — THE ELECTRIC TACHOMETER CORP. (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
NSN5330-01-201-9415
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: UL321-1 PIECE 25A 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
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
AS22520Interchangeable
interchangeable cross-reference
interchangeable
Y143Interchangeable
interchangeable cross-reference
interchangeable
620310Interchangeable
interchangeable cross-reference
interchangeable
46281-02-02-005Interchangeable
interchangeable cross-reference
interchangeable
2230B2Interchangeable
interchangeable cross-reference
interchangeable
U30B2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is UL321-1 PIECE 25A?
UL321-1 PIECE 25A is a GASKET.
What parts can replace UL321-1 PIECE 25A?
There are 12 known substitutes for UL321-1 PIECE 25A: AS22520, Y143, 620310 and 9 more. Substitute compatibility should be verified for your specific system.
Is UL321-1 PIECE 25A still available?
UL321-1 PIECE 25A 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