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231665 ✓ 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: 0.140 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, hardness_rating: 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL, outside_diameter: 1.188 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 0.250 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 5330-00-171-7046, 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
231665
NSN: 5330-00-171-7046
FSC: 5330
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
hole_diameter0.140 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
hardness_rating55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
outside_diameter1.188 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter0.250 INCHES NOMINAL IN
bolt_hole_quantity4
bolt_circle_diameter0.937 INCHES NOMINAL IN
cross-sectional_thickness0.020 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationASTM D2000 2BC615ABE4F1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-171-7046
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 231665 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000 2BC615ABE4F1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: CIRCULAR
•
HARDNESS RATING: 55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
•
APERTURE DIAMETER: 0.250 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.140 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR OVERALL
•
OUTSIDE DIAMETER: 1.188 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000 2BC615ABE4F1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORCIRCULAR
HARDNESS RATING55.0 SHORE DUROMETER A MINIMUM AND 65.0 SHORE DUROMETER A MAXIMUM OVERALL
APERTURE DIAMETER0.250 INCHES NOMINAL IN
HOLE DIAMETER0.140 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
OUTSIDE DIAMETER1.188 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
CROSS-SECTIONAL THICKNESS0.020 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
655-454Interchangeable
interchangeable cross-reference
interchangeable
6091805-1Interchangeable
interchangeable cross-reference
interchangeable
HP5 PLUSInterchangeable
interchangeable cross-reference
interchangeable
CVCPICInterchangeable
interchangeable cross-reference
interchangeable
MA502858Interchangeable
interchangeable cross-reference
interchangeable
A90BX69Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 231665?
231665 is a GASKET.
What parts can replace 231665?
There are 6 known substitutes for 231665: 655-454, 6091805-1, HP5 PLUS and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 231665?
231665 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-171-7046. 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