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Technical Data Sheet
PartsTable / COMPONENT / 1B142
1B142 ✓ 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: RUBBER CHLOROPRENE CLASS CR OVERALL, hole_diameter: 0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 19.250 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 17.250 INCHES NOMINAL IN, bolt_hole_quantity: 12. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-453-9256, 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
1B142
NSN: 5330-00-453-9256
FSC: 5330
CAGE: 11976 — CHICAGO PNEUMATIC TOOL CO (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
hole_diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter19.250 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter17.250 INCHES NOMINAL IN
bolt_hole_quantity12
bolt_circle_diameter18.375 INCHES NOMINAL IN
cross-sectional_thickness0.016 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-00-453-9256
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1B142 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
•
APERTURE DIAMETER: 17.250 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 18.375 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
HOLE DIAMETER: 0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CROSS-SECTIONAL THICKNESS: 0.016 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR OVERALL
•
OUTSIDE DIAMETER: 19.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
APERTURE DIAMETER17.250 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER18.375 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
HOLE DIAMETER0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS0.016 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
OUTSIDE DIAMETER19.250 INCHES NOMINAL IN
BOLT HOLE QUANTITY12
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
E100Interchangeable
interchangeable cross-reference
interchangeable
WWP401Interchangeable
interchangeable cross-reference
interchangeable
MIL-H-36343Interchangeable
interchangeable cross-reference
interchangeable
HX13005AInterchangeable
interchangeable cross-reference
interchangeable
E100DXInterchangeable
interchangeable cross-reference
interchangeable
5000-1112-1385778REVHPC6E100Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1B142?
1B142 is a GASKET.
What parts can replace 1B142?
There are 14 known substitutes for 1B142: E100, WWP401, MIL-H-36343 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1B142?
1B142 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-453-9256. 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