PartsTable
Technical Data Sheet
PartsTable / O-RING / 757279
757279 ✓ 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 STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 1.307 INCHES MINIMUM AND 1.317 INCHES MAXIMUM IN, diameter: 0.250 INCHES NOMINAL IN, style_designator: LEFT INTERNAL AND RIGHT INTERNAL THREADS, cross-sectional_shape: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-579-3158, 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
757279
NSN: 5331-00-579-3158
FSC: 5331 — O-RING
CAGE: 77294 — PIPER INDUSTRIAL MANUFACTURING COMPANY, LLC DIV PIPER INDUSTRIAL MANUFACTURING COMPANY (USA)
SPECIFICATIONS
length1.307 INCHES MINIMUM AND 1.317 INCHES MAXIMUM IN
diameter0.250 INCHES NOMINAL IN
style_designatorLEFT INTERNAL AND RIGHT INTERNAL THREADS
cross-sectional_shapeROUND
NSN5331-00-579-3158
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 757279 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
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
CENTER HOLE DIAMETER: 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.305 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
CENTER HOLE DIAMETER0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.305 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
R-108Interchangeable
interchangeable cross-reference
interchangeable
SP1003Interchangeable
interchangeable cross-reference
interchangeable
SP1003CPInterchangeable
interchangeable cross-reference
interchangeable
345890PC104Interchangeable
interchangeable cross-reference
interchangeable
SP14966Interchangeable
interchangeable cross-reference
interchangeable
78474Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 757279?
757279 is a STANDOFF,THREADED,SPACING.
What parts can replace 757279?
There are 30 known substitutes for 757279: R-108, SP1003, SP1003CP and 27 more. Substitute compatibility should be verified for your specific system.
Is 757279 still available?
757279 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026