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Technical Data Sheet
PartsTable / O-RING / B58108
B58108 ✓ 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 SYNTHETIC, center_hole_diameter: 2.926 INCHES MINIMUM AND 2.970 INCHES MAXIMUM IN, cross-sectional_height: 0.201 INCHES MINIMUM AND 0.215 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 5331-00-069-5189, 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
B58108
NSN: 5331-00-069-5189
FSC: 5331 — O-RING
CAGE: 77308 — PARCO, LLC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC
center_hole_diameter2.926 INCHES MINIMUM AND 2.970 INCHES MAXIMUM IN
cross-sectional_height0.201 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
NSN5331-00-069-5189
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: B58108 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: RUBBER SYNTHETIC
•
CENTER HOLE DIAMETER: 2.926 INCHES MINIMUM AND 2.970 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.201 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER SYNTHETIC
CENTER HOLE DIAMETER2.926 INCHES MINIMUM AND 2.970 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.201 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
2948Interchangeable
interchangeable cross-reference
interchangeable
12A43Interchangeable
interchangeable cross-reference
interchangeable
580R021H02Interchangeable
interchangeable cross-reference
interchangeable
GIT-2948Interchangeable
interchangeable cross-reference
interchangeable
506-2978-002Interchangeable
interchangeable cross-reference
interchangeable
5465469Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B58108?
B58108 is a O-RING.
What parts can replace B58108?
There are 13 known substitutes for B58108: 2948, 12A43, 580R021H02 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B58108?
B58108 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-069-5189. 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