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Technical Data Sheet
PartsTable / COMPONENT / 31355J
31355J ✓ 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 AND GLUE OVERALL, hole_diameter: 0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 1.875 INCHES NOMINAL IN, style_designator: NON-CIRCULAR, aperture_diameter: 0.438 INCHES NOMINAL IN, bolt_circle_diameter: 1.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-362-3675, 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
31355J
NSN: 5330-00-362-3675
FSC: 5330
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialPAPER AND GLUE OVERALL
hole_diameter0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width1.875 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
aperture_diameter0.438 INCHES NOMINAL IN
bolt_hole_quantity2
bolt_circle_diameter1.250 INCHES NOMINAL IN
outside_corner_radius0.312 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
outside_corner_inverted_radius0.500 INCHES NOMINAL IN
side_radius_from_gasket_center0.500 INCHES NOMINAL IN
NSN5330-00-362-3675
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 31355J 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
•
APERTURE DIAMETER: 0.438 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 2
•
OUTSIDE CORNER RADIUS: 0.312 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-12803,NO. G-3212 MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
BOLT CIRCLE DIAMETER: 1.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
APERTURE DIAMETER0.438 INCHES NOMINAL IN
BOLT HOLE QUANTITY2
OVERALL WIDTH1.875 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.312 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803,NO. G-3212 MIL SPEC ALL MATERIAL RESPONSES OVERALL
BOLT CIRCLE DIAMETER1.250 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
SIDE RADIUS FROM GASKET CENTER0.500 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
628-2-6Interchangeable
interchangeable cross-reference
interchangeable
499504Interchangeable
interchangeable cross-reference
interchangeable
204PPGFS153Interchangeable
interchangeable cross-reference
interchangeable
204PPGInterchangeable
interchangeable cross-reference
interchangeable
180013Interchangeable
interchangeable cross-reference
interchangeable
N10026PC134Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31355J?
31355J is a GASKET.
What parts can replace 31355J?
There are 28 known substitutes for 31355J: 628-2-6, 499504, 204PPGFS153 and 25 more. Substitute compatibility should be verified for your specific system.
Is 31355J still available?
31355J 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