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R12353 ✓ 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 RETAINER,SEAL is a the manufacturer industrial component. Key specifications include material: IRON CAST OVERALL, construction: SOLID, overall_height: 1.000 INCHES NOMINAL IN, seal_seat_depth: 0.625 INCHES NOMINAL IN, flange_thickness: 0.500 INCHES NOMINAL IN, style_designator: FLANGED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-163-8770, 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
R12353
NSN: 5330-00-163-8770
FSC: 5330
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialIRON CAST OVERALL
constructionSOLID
overall_height1.000 INCHES NOMINAL IN
seal_seat_depth0.625 INCHES NOMINAL IN
flange_thickness0.500 INCHES NOMINAL IN
style_designatorFLANGED
aperture_diameter4.750 INCHES NOMINAL IN
bolt_hole_diameter0.531 INCHES NOMINAL IN
bolt_hole_quantity6
seal_seat_diameter4.998 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN
bolt_circle_diameter6.875 INCHES NOMINAL IN
fsc_application_dataWHEEL ASSEMBLIES,AUTOMOTIVE
NSN5330-00-163-8770
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: R12353 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
•
SEAL SEAT DEPTH: 0.625 INCHES NOMINAL IN
•
SEAL SEAT DIAMETER: 4.998 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN
•
BOLT HOLE DIAMETER: 0.531 INCHES NOMINAL IN
•
MATERIAL: IRON CAST OVERALL
•
MOUNTING FLANGE DIAMETER: 7.750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLANGED
•
BODY OUTSIDE DIAMETER: 5.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEAL SEAT DEPTH0.625 INCHES NOMINAL IN
OVERALL HEIGHT1.000 INCHES NOMINAL IN
SEAL SEAT DIAMETER4.998 INCHES MINIMUM AND 5.000 INCHES MAXIMUM IN
BOLT HOLE DIAMETER0.531 INCHES NOMINAL IN
MATERIALIRON CAST OVERALL
MOUNTING FLANGE DIAMETER7.750 INCHES NOMINAL IN
STYLE DESIGNATORFLANGED
BODY OUTSIDE DIAMETER5.625 INCHES NOMINAL IN
APERTURE DIAMETER4.750 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER6.875 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
12353Interchangeable
interchangeable cross-reference
interchangeable
N12353Interchangeable
interchangeable cross-reference
interchangeable
HS070D2239-20Interchangeable
interchangeable cross-reference
interchangeable
44173Interchangeable
interchangeable cross-reference
interchangeable
150 CInterchangeable
interchangeable cross-reference
interchangeable
2001 CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R12353?
R12353 is a RETAINER,SEAL.
What parts can replace R12353?
There are 19 known substitutes for R12353: 12353, N12353, HS070D2239-20 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R12353?
R12353 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-163-8770. 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