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Technical Data Sheet
PartsTable / COMPONENT / 902904-1
902904-1 ✓ 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 STRAP,RETAINING is a the manufacturer industrial component. Key specifications include cushion: NOT INCLUDED, material: STEEL LOCATION NOT OTHERWISE SPECIFIED, mounting_pad: NOT INCLUDED, overall_width: 0.500 INCHES NOMINAL IN, style_designator: CURVED ARCH, surface_treatment: CADMIUM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-070-3093, 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
902904-1
NSN: 5340-01-070-3093
FSC: 5340
CAGE: 83179 — JOY MFG CO AIR POWER GROUP MICHIGAN CITY PLANT (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialSTEEL LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width0.500 INCHES NOMINAL IN
style_designatorCURVED ARCH
surface_treatmentCADMIUM
mounting_hole_size0.188 INCHES NOMINAL IN
inside_diameter/arch_length0.250 INCHES NOMINAL IN
distance_between_base_and_inside_of_arch0.125 INCHES NOMINAL IN
center_to_center_distance_between_arch_and_mounting_hole0.625 INCHES NOMINAL IN
NSN5340-01-070-3093
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 902904-1 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: STEEL LOCATION NOT OTHERWISE SPECIFIED
•
SURFACE TREATMENT: CADMIUM
•
STYLE DESIGNATOR: CURVED ARCH
•
MOUNTING HOLE SIZE: 0.188 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN ARCH AND MOUNTING HOLE: 0.625 INCHES NOMINAL IN
•
MOUNTING PAD: NOT INCLUDED
•
DISTANCE BETWEEN BASE AND INSIDE OF ARCH: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.500 INCHES NOMINAL IN
MATERIALSTEEL LOCATION NOT OTHERWISE SPECIFIED
SURFACE TREATMENTCADMIUM
STYLE DESIGNATORCURVED ARCH
MOUNTING HOLE SIZE0.188 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN ARCH AND MOUNTING HOLE0.625 INCHES NOMINAL IN
MOUNTING PADNOT INCLUDED
DISTANCE BETWEEN BASE AND INSIDE OF ARCH0.125 INCHES NOMINAL IN
CUSHIONNOT INCLUDED
INSIDE DIAMETER/ARCH LENGTH0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
8258Upgraded Successor
successor cross-reference
successor
3306221-3Upgraded Successor
successor cross-reference
successor
6515NCM082590Upgraded Successor
successor cross-reference
successor
72135Upgraded Successor
successor cross-reference
successor
1309Interchangeable
interchangeable cross-reference
interchangeable
687265Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 902904-1?
902904-1 is a STRAP,RETAINING.
What parts can replace 902904-1?
There are 12 known substitutes for 902904-1: 8258, 3306221-3, 6515NCM082590 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 902904-1?
902904-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-070-3093. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026