PartsTable / O-RING / NS-258
NS-258
✓ 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 BUTADIENE-ACRYLONITRILE CLASS NBR, hardness_rating: 70.0 SHORE DUROMETER A NOMINAL, outside_diameter: 6.262 INCHES NOMINAL IN, center_hole_diameter: 5.961 INCHES MINIMUM AND 6.007 INCHES MAXIMUM IN, cross-sectional_height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-291-7380, 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
NS-258
NSN: 5331-00-291-7380 FSC: 5331 — O-RINGCAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
material RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR hardness_rating 70.0 SHORE DUROMETER A NOMINAL outside_diameter 6.262 INCHES NOMINAL IN center_hole_diameter 5.961 INCHES MINIMUM AND 6.007 INCHES MAXIMUM IN cross-sectional_height 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN NSN 5331-00-291-7380
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION
ID: —
CROSS-SECTION
CS: —
SPECIFICATION
Material: —
Durometer: —
Temp: —
PN: NS-258
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
• HARDNESS RATING: 70.0 SHORE DUROMETER A NOMINAL
• OUTSIDE DIAMETER: 6.262 INCHES NOMINAL IN
• CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
• MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
• CENTER HOLE DIAMETER: 5.961 INCHES MINIMUM AND 6.007 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING 70.0 SHORE DUROMETER A NOMINAL OUTSIDE DIAMETER 6.262 INCHES NOMINAL IN CROSS-SECTIONAL HEIGHT 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN MATERIAL RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR CENTER HOLE DIAMETER 5.961 INCHES MINIMUM AND 6.007 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
13220 Interchangeable interchangeable cross-reference
interchangeable
2258 Interchangeable interchangeable cross-reference
interchangeable
34016-1C Interchangeable interchangeable cross-reference
interchangeable
341016-1C Interchangeable interchangeable cross-reference
interchangeable
10298PC2258 Interchangeable interchangeable cross-reference
interchangeable
10349PC21 Interchangeable interchangeable cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NS-258?
NS-258 is a O-RING.
What parts can replace NS-258?
There are 20 known substitutes for NS-258: 13220, 2258, 34016-1C and 17 more. Substitute compatibility should be verified for your specific system.
Is NS-258 still available?
NS-258 is currently cancelled.