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PartsTable / COMPONENT / G157S203
G157S203 ✓ 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 FELT,MECHANICAL,PREFORMED is a the manufacturer industrial component. Key specifications include material: WOOL OVERALL, overall_width: 0.750 INCHES NOMINAL IN, overall_length: 1.062 INCHES NOMINAL IN, aperture_diameter: 0.250 INCHES NOMINAL IN, cross-sectional_height: 0.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-358-5265, 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
G157S203
NSN: 5330-00-358-5265
FSC: 5330
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialWOOL OVERALL
overall_width0.750 INCHES NOMINAL IN
overall_length1.062 INCHES NOMINAL IN
aperture_diameter0.250 INCHES NOMINAL IN
cross-sectional_height0.125 INCHES NOMINAL IN
NSN5330-00-358-5265
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: G157S203 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
•
CROSS-SECTIONAL HEIGHT: 0.125 INCHES NOMINAL IN
•
APERTURE DIAMETER: 0.250 INCHES NOMINAL IN
•
MATERIAL: WOOL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
APERTURE DIAMETER0.250 INCHES NOMINAL IN
OVERALL WIDTH0.750 INCHES NOMINAL IN
OVERALL LENGTH1.062 INCHES NOMINAL IN
MATERIALWOOL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
214434Interchangeable
interchangeable cross-reference
interchangeable
1-16BALLGRADE3Interchangeable
interchangeable cross-reference
interchangeable
2MP52Interchangeable
interchangeable cross-reference
interchangeable
3452Interchangeable
IBM HD SAS YO Cable 6M
interchangeable
21634Interchangeable
interchangeable cross-reference
interchangeable
0021634Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G157S203?
G157S203 is a FELT,MECHANICAL,PREFORMED.
What parts can replace G157S203?
There are 11 known substitutes for G157S203: 214434, 1-16BALLGRADE3, 2MP52 and 8 more. Substitute compatibility should be verified for your specific system.
Is G157S203 still available?
G157S203 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