PartsTable
Technical Data Sheet
K8312-1 ✓ 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: CORK AND RUBBER OVERALL, hole_diameter: 0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 8.750 INCHES NOMINAL IN, aperture_width: 7.000 INCHES NOMINAL IN, overall_length: 9.875 INCHES NOMINAL IN, aperture_length: 8.125 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-249-4093, 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
K8312-1
NSN: 5330-00-249-4093
FSC: 5330
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialCORK AND RUBBER OVERALL
hole_diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width8.750 INCHES NOMINAL IN
aperture_width7.000 INCHES NOMINAL IN
overall_length9.875 INCHES NOMINAL IN
aperture_length8.125 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
bolt_hole_quantity8
inside_corner_radius0.875 INCHES NOMINAL IN
outside_corner_radius0.438 INCHES NOMINAL IN
cross-sectional_thickness0.063 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-249-4093
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: K8312-1 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
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH: 0.438 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 3.938 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
INSIDE CORNER RADIUS: 0.875 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 4.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
STYLE DESIGNATOR: NON-CIRCULAR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL LENGTH9.875 INCHES NOMINAL IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG WIDTH0.438 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH3.938 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
INSIDE CORNER RADIUS0.875 INCHES NOMINAL IN
OVERALL WIDTH8.750 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH4.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
STYLE DESIGNATORNON-CIRCULAR
MATERIALCORK AND RUBBER OVERALL
OUTSIDE CORNER RADIUS0.438 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
1259B28Interchangeable
interchangeable cross-reference
interchangeable
26013JInterchangeable
interchangeable cross-reference
interchangeable
8312-3Interchangeable
interchangeable cross-reference
interchangeable
8312-1Interchangeable
interchangeable cross-reference
interchangeable
SM-728 SETInterchangeable
interchangeable cross-reference
interchangeable
3121MTCCInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K8312-1?
K8312-1 is a GASKET.
What parts can replace K8312-1?
There are 9 known substitutes for K8312-1: 1259B28, 26013J, 8312-3 and 6 more. Substitute compatibility should be verified for your specific system.
Is K8312-1 still available?
K8312-1 is currently cancelled.
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