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Technical Data Sheet
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157G7 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

157G7: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER OVERALL, inside_corner_radius: 0.375 INCHES NOMINAL IN, outside_corner_radius: 0.500 INCHES NOMINAL IN, cross-sectional_thickness: 0.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-753-9638, 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
157G7
NSN: 5330-00-753-9638
FSC: 5330 — Packing and Gasket Materials
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialRUBBER OVERALL
inside_corner_radius0.375 INCHES NOMINAL IN
outside_corner_radius0.500 INCHES NOMINAL IN
cross-sectional_thickness0.312 INCHES NOMINAL IN
NSN5330-00-753-9638
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 157G7 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 THICKNESS: 0.312 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 0.375 INCHES NOMINAL IN
•
OUTSIDE CORNER RADIUS: 0.500 INCHES NOMINAL IN
•
MATERIAL: RUBBER OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.312 INCHES NOMINAL IN
INSIDE CORNER RADIUS0.375 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.500 INCHES NOMINAL IN
MATERIALRUBBER OVERALL
SUBSTITUTES & CROSS-REFERENCES 5
1916502Reference document
Same NSN cross-reference
Reference document — Secondary reference
2056191Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7H4695Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5330007539638Reference document
Same NSN cross-reference
Reference document — Informative reference only
914354Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 157G7?
157G7 is a GASKET.
What parts can replace 157G7?
There are 5 known substitutes for 157G7: 1916502, 2056191, 7H4695 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 157G7?
157G7 is cataloged in the U.S. Government catalog under NSN 5330-00-753-9638. This indicates validated use in U.S. government and defense supply chains.
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