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Technical Data Sheet
PartsTable / COMPONENT / 8B1361
8B1361 ✓ 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: ASBESTOS AND COPPER ALLOY OVERALL, overall_width: 8.375 INCHES NOMINAL IN, overall_length: 28.625 INCHES NOMINAL IN, cross-sectional_thickness: 0.053 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN, cross-sectional_shape_style: METAL WITH SOFT FILLER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-399-6966, 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
8B1361
NSN: 5330-00-399-6966
FSC: 5330
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialASBESTOS AND COPPER ALLOY OVERALL
overall_width8.375 INCHES NOMINAL IN
overall_length28.625 INCHES NOMINAL IN
cross-sectional_thickness0.053 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
cross-sectional_shape_styleMETAL WITH SOFT FILLER
NSN5330-00-399-6966
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8B1361 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: METAL WITH SOFT FILLER
•
CROSS-SECTIONAL THICKNESS: 0.053 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
•
MATERIAL: ASBESTOS AND COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLEMETAL WITH SOFT FILLER
CROSS-SECTIONAL THICKNESS0.053 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
MATERIALASBESTOS AND COPPER ALLOY OVERALL
OVERALL LENGTH28.625 INCHES NOMINAL IN
OVERALL WIDTH8.375 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
1766Interchangeable
interchangeable cross-reference
interchangeable
B-543Interchangeable
interchangeable cross-reference
interchangeable
B543B107A000014S000000Interchangeable
interchangeable cross-reference
interchangeable
152-25Interchangeable
interchangeable cross-reference
interchangeable
M178Interchangeable
interchangeable cross-reference
interchangeable
M178AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8B1361?
8B1361 is a GASKET.
What parts can replace 8B1361?
There are 25 known substitutes for 8B1361: 1766, B-543, B543B107A000014S000000 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8B1361?
8B1361 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-399-6966. 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