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Technical Data Sheet
PartsTable / COMPONENT / 51312D
51312D ✓ 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 hole_diameter: 0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 2.312 INCHES NOMINAL IN, overall_length: 9.500 INCHES NOMINAL IN, cross-sectional_thickness: 0.031 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-569-7063, 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
51312D
NSN: 5330-00-569-7063
FSC: 5330
CAGE: 31007 — NAVISTAR INTERNATIONAL CORPORATION DBA NAVISTAR (USA)
SPECIFICATIONS
hole_diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width2.312 INCHES NOMINAL IN
overall_length9.500 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-569-7063
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 51312D 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
•
HOLE DIAMETER: 0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL WIDTH2.312 INCHES NOMINAL IN
OVERALL LENGTH9.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
38-104Interchangeable
interchangeable cross-reference
interchangeable
D38169PC1T040Interchangeable
interchangeable cross-reference
interchangeable
3810795Interchangeable
interchangeable cross-reference
interchangeable
38107Interchangeable
interchangeable cross-reference
interchangeable
N3810795Interchangeable
interchangeable cross-reference
interchangeable
6002-548Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51312D?
51312D is a GASKET.
What parts can replace 51312D?
There are 7 known substitutes for 51312D: 38-104, D38169PC1T040, 3810795 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 51312D?
51312D is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-569-7063. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026