PartsTable
Technical Data Sheet
PartsTable / O-RING / SM-C-773504-8
SM-C-773504-8 ✓ 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 O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER ETHYLENE-PROPYLENE CLASS EPM, center_hole_diameter: 0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN, cross-sectional_height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-006-5478, 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
SM-C-773504-8
NSN: 5331-01-006-5478
FSC: 5331 — O-RING
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
materialRUBBER ETHYLENE-PROPYLENE CLASS EPM
center_hole_diameter0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
cross-sectional_height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
NSN5331-01-006-5478
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SM-C-773504-8 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
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
MATERIAL: RUBBER ETHYLENE-PROPYLENE CLASS EPM
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER0.421 INCHES MINIMUM AND 0.431 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
MATERIALRUBBER ETHYLENE-PROPYLENE CLASS EPM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
10164282Interchangeable
interchangeable cross-reference
interchangeable
2-013E515-8Interchangeable
interchangeable cross-reference
interchangeable
E20018J001-13Interchangeable
interchangeable cross-reference
interchangeable
RS26110-01329Interchangeable
interchangeable cross-reference
interchangeable
9177346-10Interchangeable
interchangeable cross-reference
interchangeable
013-3128Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SM-C-773504-8?
SM-C-773504-8 is a O-RING.
What parts can replace SM-C-773504-8?
There are 16 known substitutes for SM-C-773504-8: 10164282, 2-013E515-8, E20018J001-13 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SM-C-773504-8?
SM-C-773504-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-006-5478. 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