PartsTable
Technical Data Sheet
PartsTable / COMPONENT / R12357
R12357 ✓ 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: 0.563 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 7.875 INCHES NOMINAL IN, style_designator: NON-CIRCULAR, aperture_diameter: 5.938 INCHES NOMINAL IN, bolt_circle_diameter: 6.875 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-163-2237, 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
R12357
NSN: 5330-00-163-2237
FSC: 5330
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialPAPER AND GLUE OVERALL
hole_diameter0.563 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width7.875 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
aperture_diameter5.938 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter6.875 INCHES NOMINAL IN
outside_corner_radius0.500 INCHES NOMINAL IN
cross-sectional_thickness0.010 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
side_radius_from_gasket_center3.500 INCHES NOMINAL IN
material_document_and_classificationMIL-G-12803,+3313-B MIL SPEC 1ST MATERIAL RESPONSE AND MIL-G-12803,+3313-C MIL SPEC 2ND MATERIAL RESPONSE OVERALL
NSN5330-00-163-2237
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: R12357 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 HOLE QUANTITY: 6
•
HOLE DIAMETER: 0.563 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
MATERIAL: PAPER AND GLUE OVERALL
•
CROSS-SECTIONAL THICKNESS: 0.010 INCHES NOMINAL IN
•
APERTURE DIAMETER: 5.938 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 6.875 INCHES NOMINAL IN
•
SIDE RADIUS FROM GASKET CENTER: 3.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
BOLT HOLE QUANTITY6
HOLE DIAMETER0.563 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
MATERIALPAPER AND GLUE OVERALL
CROSS-SECTIONAL THICKNESS0.010 INCHES NOMINAL IN
APERTURE DIAMETER5.938 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER6.875 INCHES NOMINAL IN
SIDE RADIUS FROM GASKET CENTER3.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-12803,+3313-B MIL SPEC 1ST MATERIAL RESPONSE AND MIL-G-12803,+3313-C MIL SPEC 2ND MATERIAL RESPONSE OVERALL
STYLE DESIGNATORNON-CIRCULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
853-14588-001Interchangeable
interchangeable cross-reference
interchangeable
12-327Interchangeable
interchangeable cross-reference
interchangeable
10EF14Interchangeable
interchangeable cross-reference
interchangeable
190215PC140Interchangeable
interchangeable cross-reference
interchangeable
190207PC140Interchangeable
interchangeable cross-reference
interchangeable
407466PC140Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy R12357?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is R12357?
R12357 is a GASKET.
What parts can replace R12357?
There are 15 known substitutes for R12357: 853-14588-001, 12-327, 10EF14 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R12357?
R12357 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-163-2237. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — R12357

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026