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Technical Data Sheet
PartsTable / COMPONENT / 31308F
31308F ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: PAPER OVERALL, hole_diameter: 0.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 5.125 INCHES NOMINAL IN, special_features: 3 BOLT HOLES AT 0.531 INS, aperture_diameter: 3.500 INCHES NOMINAL IN, bolt_circle_diameter: 4.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-126-1809, 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
31308F
NSN: 5330-00-126-1809
FSC: 5330
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialPAPER OVERALL
hole_diameter0.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter5.125 INCHES NOMINAL IN
special_features3 BOLT HOLES AT 0.531 INS
aperture_diameter3.500 INCHES NOMINAL IN
bolt_hole_quantity1
bolt_circle_diameter4.250 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-126-1809
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 31308F 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 SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
BOLT CIRCLE DIAMETER: 4.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 1
•
MATERIAL: PAPER OVERALL
•
APERTURE DIAMETER: 3.500 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 5.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
BOLT CIRCLE DIAMETER4.250 INCHES NOMINAL IN
SPECIAL FEATURES3 BOLT HOLES AT 0.531 INS
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
BOLT HOLE QUANTITY1
MATERIALPAPER OVERALL
APERTURE DIAMETER3.500 INCHES NOMINAL IN
OUTSIDE DIAMETER5.125 INCHES NOMINAL IN
HOLE DIAMETER0.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
115260Interchangeable
interchangeable cross-reference
interchangeable
U1206TMInterchangeable
interchangeable cross-reference
interchangeable
SK201-19Interchangeable
interchangeable cross-reference
interchangeable
5967-011Interchangeable
interchangeable cross-reference
interchangeable
5967Interchangeable
interchangeable cross-reference
interchangeable
77C707926P002Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31308F?
31308F is a GASKET.
What parts can replace 31308F?
There are 29 known substitutes for 31308F: 115260, U1206TM, SK201-19 and 26 more. Substitute compatibility should be verified for your specific system.
Is 31308F still available?
31308F 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