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Technical Data Sheet
PartsTable / COMPONENT / 54A50C180
54A50C180 ✓ 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 BUTADIENE-STYRENE CLASS SBR OVERALL, hole_diameter: 0.234 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, hardness_rating: 40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL, outside_diameter: 4.250 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 2.625 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 5330-00-058-1101, 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
54A50C180
NSN: 5330-00-058-1101
FSC: 5330
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
hole_diameter0.234 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
hardness_rating40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL
outside_diameter4.250 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter2.625 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter3.500 INCHES NOMINAL IN
fsc_application_dataSPRAY TANK,AIRBORNE
cross-sectional_thickness0.250 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-058-1101
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 54A50C180 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
•
APERTURE DIAMETER: 2.625 INCHES NOMINAL IN
•
HARDNESS RATING: 40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL
•
FSC APPLICATION DATA: SPRAY TANK,AIRBORNE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
HOLE DIAMETER: 0.234 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
BOLT HOLE QUANTITY: 6
•
BOLT CIRCLE DIAMETER: 3.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
APERTURE DIAMETER2.625 INCHES NOMINAL IN
HARDNESS RATING40.0 SHORE DUROMETER A MINIMUM AND 50.0 SHORE DUROMETER A MAXIMUM OVERALL
FSC APPLICATION DATASPRAY TANK,AIRBORNE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-900 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
HOLE DIAMETER0.234 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
BOLT HOLE QUANTITY6
BOLT CIRCLE DIAMETER3.500 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-STYRENE CLASS SBR OVERALL
CROSS-SECTIONAL THICKNESS0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
6956Interchangeable
interchangeable cross-reference
interchangeable
B7C1190AInterchangeable
interchangeable cross-reference
interchangeable
44053Interchangeable
interchangeable cross-reference
interchangeable
1947594Interchangeable
interchangeable cross-reference
interchangeable
18055Interchangeable
interchangeable cross-reference
interchangeable
40725Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 54A50C180?
54A50C180 is a GASKET.
What parts can replace 54A50C180?
There are 6 known substitutes for 54A50C180: 6956, B7C1190A, 44053 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 54A50C180?
54A50C180 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-058-1101. 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