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Technical Data Sheet
PartsTable / O-RING / 157775
157775 ✓ 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 BRACKET,MOUNTING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024, overall_width: 0.500 INCHES NOMINAL IN, overall_height: 0.560 INCHES NOMINAL IN, overall_length: 3.310 INCHES NOMINAL IN, special_features: TWO ADDITIONAL HOLES, 4-40 UNC 2B BY 0.180 IN. MIN DEEP IN, surface_treatment: CHROMATE.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-585-3558, 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
157775
NSN: 5331-00-585-3558
FSC: 5331 — O-RING
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
overall_width0.500 INCHES NOMINAL IN
overall_height0.560 INCHES NOMINAL IN
overall_length3.310 INCHES NOMINAL IN
special_featuresTWO ADDITIONAL HOLES, 4-40 UNC 2B BY 0.180 IN. MIN DEEP IN
surface_treatmentCHROMATE
mounting_hole_typePLAIN
mounting_hole_diameter0.125 INCHES NOMINAL IN
mounting_hole_quantity4
material_document_and_classificationQQ-A-250/6 T351 FED SPEC SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationMIL-C-5541 CL 1A MIL SPEC SINGLE TREATMENT RESPONSE A
NSN5331-00-585-3558
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 157775 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
•
CENTER HOLE DIAMETER: 0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
9141Interchangeable
interchangeable cross-reference
interchangeable
M93248/1-014Interchangeable
interchangeable cross-reference
interchangeable
M83248/1-014Interchangeable
interchangeable cross-reference
interchangeable
9550094Interchangeable
interchangeable cross-reference
interchangeable
1600242Interchangeable
interchangeable cross-reference
interchangeable
504571-9Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 157775?
157775 is a BRACKET,MOUNTING.
What parts can replace 157775?
There are 23 known substitutes for 157775: 9141, M93248/1-014, M83248/1-014 and 20 more. Substitute compatibility should be verified for your specific system.
Is 157775 still available?
157775 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