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23500-90 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

23500-90: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: ALUMINUM,OVER-ALL DIMENSION 12.250 IN. BY 18.875 IN.

0.064 IN. THK IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-138-0058, 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
23500-90
NSN: 5331-00-138-0058
NIINs: 001380058, 004210035
FSC: 5331 — O-ring
CAGE: 06334 — ACE PUMP CORP (USA)
SPECIFICATIONS
general_characteristics_item_descriptionALUMINUM,OVER-ALL DIMENSION 12.250 IN. BY 18.875 IN. 0.064 IN. THK IN
NSN5331-00-138-0058
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 23500-90 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 HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 3.094 INCHES MINIMUM AND 3.124 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CENTER HOLE DIAMETER3.094 INCHES MINIMUM AND 3.124 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 3
923585Reference document
Same NSN cross-reference
Reference document — Secondary reference
2-235N219-70Reference document
Same NSN cross-reference
Reference document — Secondary reference
2-235 N219-7Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 23500-90?
23500-90 is a O-RING.
What parts can replace 23500-90?
There are 3 known substitutes for 23500-90: 923585, 2-235N219-70, 2-235 N219-7. Substitute compatibility should be verified for your specific system.
What is the NSN for 23500-90?
23500-90 is cataloged in the U.S. Government catalog under NSN 5331-00-138-0058. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.