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361958 — O-RING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

361958: O-RING.

The O-RING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, head_style: ROUND, head_height: 0.094 INCHES NOMINAL IN, head_diameter: 0.312 INCHES NOMINAL IN, thread_length: 0.656 INCHES MINIMUM IN, fastener_length: 0.813 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-422-1678, 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
361958
NSN: 5331-00-422-1678
NIINs: 004221678, 006388307
FSC: 5331 — O-ring
CAGE: 80045 — L3HARRIS CINCINNATI ELECTRONICS CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
head_styleROUND
head_height0.094 INCHES NOMINAL IN
head_diameter0.312 INCHES NOMINAL IN
thread_length0.656 INCHES MINIMUM IN
fastener_length0.813 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
features_providedFINISHED HEAD
surface_treatmentNICKEL OVERALL
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUNF
NSN5331-00-422-1678
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 361958 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: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 22.625 INCHES MINIMUM AND 22.750 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN
CENTER HOLE DIAMETER22.625 INCHES MINIMUM AND 22.750 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 361958?
361958 is a O-RING.
What is the NSN for 361958?
361958 is cataloged in the U.S. Government catalog under NSN 5331-00-422-1678. 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.