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3242420A — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3242420A: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, cross-sectional_height: 0.125 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-286-0093, 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
3242420A
NSN: 5331-00-286-0093
FSC: 5331 — O-ring
CAGE: 55380 — HATCH & KIRK, INC. (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR
cross-sectional_height0.125 INCHES NOMINAL IN
NSN5331-00-286-0093
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3242420A 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: 0.125 INCHES NOMINAL IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.125 INCHES NOMINAL IN
MATERIALRUBBER CHLOROPRENE CLASS CR
OTHER ITEMS IN FSC 5331 — O-ring
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5331-00-001-1971 5331-00-001-1979 5331-00-001-3904 5331-00-001-3905 5331-00-001-3906 5331-00-001-3908 5331-00-001-3923 5331-00-001-3924
SUBSTITUTES & CROSS-REFERENCES 7
N8762REV13PC55Reference document
Same NSN cross-reference
Reference document — Secondary reference
N12762PC55Reference document
Same NSN cross-reference
Reference document — Secondary reference
C1098PC84Reference document
Same NSN cross-reference
Reference document — Secondary reference
N12763APC17Reference document
Same NSN cross-reference
Reference document — Secondary reference
NX14266PC17Reference document
Same NSN cross-reference
Reference document — Secondary reference
C1365PC152Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3242420A?
3242420A is a O-RING.
What parts can replace 3242420A?
There are 7 known substitutes for 3242420A: N8762REV13PC55, N12762PC55, C1098PC84 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3242420A?
3242420A is cataloged in the U.S. Government catalog under NSN 5331-00-286-0093. 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.