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31-15-4173-2 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

31-15-4173-2: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-00-833-2350, 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
31-15-4173-2
NSN: 5330-00-833-2350
FSC: 5330 — Packing and Gasket Materials
CAGE: 81361 — EDGEWOOD CHEMICAL BIOLOGICAL CENTER ECBC (USA)
SPECIFICATIONS
Part Number31-15-4173-2
NSN5330-00-833-2350
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 31-15-4173-2 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
SUBSTITUTES & CROSS-REFERENCES 7
381721R91Reference document
Same NSN cross-reference
Reference document — Secondary reference
9878Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
4068268Reference document
Same NSN cross-reference
Reference document — Secondary reference
A4068268Reference document
Same NSN cross-reference
Reference document — Secondary reference
043129Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
2J8333Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 31-15-4173-2?
31-15-4173-2 is a SEAL,PLAIN ENCASED.
What parts can replace 31-15-4173-2?
There are 7 known substitutes for 31-15-4173-2: 381721R91, 9878, 4068268 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31-15-4173-2?
31-15-4173-2 is cataloged in the U.S. Government catalog under NSN 5330-00-833-2350. 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.