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Technical Data Sheet
A-A-52598 CLASS C ✓ 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-ACRYLONITRILE CLASS NBR OVERALL, hardness_rating: 35.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL, center_hole_diameter: 8.125 INCHES MINIMUM AND 8.187 INCHES MAXIMUM IN, cross-sectional_height: 1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN, departure_from_cited_document: PARAGRAPH 3.4 GASKETS, material_document_and_classification: MIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-171-8086, 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-52598 CLASS C
NSN: 5330-00-171-8086
FSC: 5330
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
hardness_rating35.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
center_hole_diameter8.125 INCHES MINIMUM AND 8.187 INCHES MAXIMUM IN
cross-sectional_height1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
departure_from_cited_documentPARAGRAPH 3.4 GASKETS
material_document_and_classificationMIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-171-8086
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A-A-52598 CLASS C 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
HARDNESS RATING: 35.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
CENTER HOLE DIAMETER: 8.125 INCHES MINIMUM AND 8.187 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT: 1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
DEPARTURE FROM CITED DOCUMENT: PARAGRAPH 3.4 GASKETS
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING35.0 SHORE DUROMETER A MINIMUM AND 55.0 SHORE DUROMETER A MAXIMUM OVERALL
CENTER HOLE DIAMETER8.125 INCHES MINIMUM AND 8.187 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-2765 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
DEPARTURE FROM CITED DOCUMENTPARAGRAPH 3.4 GASKETS
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
77A1-1/2INInterchangeable
interchangeable cross-reference
interchangeable
1025-30108 PC8Interchangeable
interchangeable cross-reference
interchangeable
77A1-1-2Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-10387Interchangeable
interchangeable cross-reference
interchangeable
MILC10387BInterchangeable
interchangeable cross-reference
interchangeable
100SERIES4INGR00VETYPE2BUTYLInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-A-52598 CLASS C?
A-A-52598 CLASS C is a GASKET.
What parts can replace A-A-52598 CLASS C?
There are 22 known substitutes for A-A-52598 CLASS C: 77A1-1/2IN, 1025-30108 PC8, 77A1-1-2 and 19 more. Substitute compatibility should be verified for your specific system.
Is A-A-52598 CLASS C still available?
A-A-52598 CLASS C is currently cancelled.
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