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Technical Data Sheet
PartsTable / O-RING / 40210 ITEM NO 230
40210 ITEM NO 230 ✓ 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 NATURAL, center_hole_diameter: 7.484 INCHES NOMINAL IN, cross-sectional_height: 0.139 INCHES NOMINAL 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 5331-01-640-9694, 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
40210 ITEM NO 230
NSN: 5331-01-640-9694
FSC: 5331 — O-RING
CAGE: 1KHV0 — EXLAR CORPORATION (USA)
SPECIFICATIONS
materialRUBBER NATURAL
center_hole_diameter7.484 INCHES NOMINAL IN
cross-sectional_height0.139 INCHES NOMINAL IN
NSN5331-01-640-9694
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 40210 ITEM NO 230 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: 0.139 INCHES NOMINAL IN
•
MATERIAL: RUBBER NATURAL
•
CENTER HOLE DIAMETER: 7.484 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.139 INCHES NOMINAL IN
MATERIALRUBBER NATURAL
CENTER HOLE DIAMETER7.484 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
44444Interchangeable
interchangeable cross-reference
interchangeable
1A44444Interchangeable
interchangeable cross-reference
interchangeable
A340303Interchangeable
interchangeable cross-reference
interchangeable
60-1210Interchangeable
interchangeable cross-reference
interchangeable
PA7056Interchangeable
interchangeable cross-reference
interchangeable
1250473Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40210 ITEM NO 230?
40210 ITEM NO 230 is a O-RING.
What parts can replace 40210 ITEM NO 230?
There are 10 known substitutes for 40210 ITEM NO 230: 44444, 1A44444, A340303 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40210 ITEM NO 230?
40210 ITEM NO 230 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-01-640-9694. 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