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Technical Data Sheet
PartsTable / COMPONENT / A-A-52481
A-A-52481 ✓ 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 SYNTHETIC OVERALL, hole_diameter: 0.203 INCHES NOMINAL ALL HOLES IN, overall_width: 1.625 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN, overall_length: 1.625 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN, style_designator: NON-CIRCULAR, aperture_diameter: 1.375 INCHES MINIMUM AND 1.391 INCHES MAXIMUM 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 5330-00-238-7383, 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
A-A-52481
NSN: 5330-00-238-7383
FSC: 5330
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
hole_diameter0.203 INCHES NOMINAL ALL HOLES IN
overall_width1.625 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN
overall_length1.625 INCHES MINIMUM AND 1.641 INCHES MAXIMUM IN
style_designatorNON-CIRCULAR
aperture_diameter1.375 INCHES MINIMUM AND 1.391 INCHES MAXIMUM IN
bolt_hole_quantity4
outside_corner_radius0.188 INCHES NOMINAL IN
cross-sectional_thickness0.021 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
part_name_assigned_by_controlling_agencyGASKET, RUBBER, SYNTHETIC
outside_edge_to_bolt_hole_center_distance_along_width0.1875 INCHES NOMINAL IN
NSN5330-00-238-7383
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A-A-52481 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000 2BC815C1E3 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH: 0.594 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 0.594 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
HOLE DIAMETER: 0.172 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH: 0.140 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
•
OUTSIDE CORNER RADIUS: 0.141 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000 2BC815C1E3 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH0.594 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH0.594 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
HOLE DIAMETER0.172 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.140 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.026 INCHES MINIMUM AND 0.036 INCHES MAXIMUM IN
OUTSIDE CORNER RADIUS0.141 INCHES NOMINAL IN
APERTURE DIAMETER0.500 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
MS52000-6Interchangeable
interchangeable cross-reference
interchangeable
7358504Interchangeable
interchangeable cross-reference
interchangeable
A-A-52481Interchangeable
interchangeable cross-reference
interchangeable
25KP251Interchangeable
interchangeable cross-reference
interchangeable
371-8374-080Interchangeable
interchangeable cross-reference
interchangeable
SM-C-632667Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-A-52481?
A-A-52481 is a GASKET.
What parts can replace A-A-52481?
There are 31 known substitutes for A-A-52481: MS52000-6, 7358504, A-A-52481 and 28 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-A-52481?
A-A-52481 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-238-7383. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026