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Technical Data Sheet
PartsTable / COMPONENT / B17303-307
B17303-307 ✓ 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 SET is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-190-7511, 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
B17303-307
NSN: 5330-01-190-7511
FSC: 5330
CAGE: 08441 — SPX CORPORATION DBA DIELECTRIC COMMUNICATIONS DIV SPX COMMUNICATION TECHNOLOGIES (USA)
SPECIFICATIONS
Part NumberB17303-307
NSN5330-01-190-7511
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B17303-307 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 12
C33AInterchangeable
interchangeable cross-reference
interchangeable
R157PC16Interchangeable
interchangeable cross-reference
interchangeable
BS4-1546ALT1PC6USInterchangeable
interchangeable cross-reference
interchangeable
11B5090651-72Interchangeable
interchangeable cross-reference
interchangeable
14358Interchangeable
interchangeable cross-reference
interchangeable
54767Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B17303-307?
B17303-307 is a GASKET SET.
What parts can replace B17303-307?
There are 12 known substitutes for B17303-307: C33A, R157PC16, BS4-1546ALT1PC6US and 9 more. Substitute compatibility should be verified for your specific system.
Is B17303-307 still available?
B17303-307 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