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Technical Data Sheet
PartsTable / COMPONENT / A0531
A0531 ✓ 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 A0531 is a the manufacturer industrial component. Key specifications include material: CELLULOSE OVERALL, outside_diameter: 1.985 INCHES MINIMUM AND 1.995 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 1.500 INCHES NOMINAL IN, cross-sectional_thickness: 0.062 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-231-0327, 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
A0531
NSN: 5330-00-231-0327
FSC: 5330
CAGE: 85475 — BRACKE R F AND CO (USA)
SPECIFICATIONS
materialCELLULOSE OVERALL
outside_diameter1.985 INCHES MINIMUM AND 1.995 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter1.500 INCHES NOMINAL IN
cross-sectional_thickness0.062 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-P-20085 MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-231-0327
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A0531 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 THICKNESS: 0.062 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
APERTURE DIAMETER: 1.500 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.985 INCHES MINIMUM AND 1.995 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-20085 MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
MATERIAL: CELLULOSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL THICKNESS0.062 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
APERTURE DIAMETER1.500 INCHES NOMINAL IN
OUTSIDE DIAMETER1.985 INCHES MINIMUM AND 1.995 INCHES MAXIMUM IN
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-20085 MIL SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALCELLULOSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
10105144-5Interchangeable
interchangeable cross-reference
interchangeable
35102Interchangeable
interchangeable cross-reference
interchangeable
41-530-01Interchangeable
interchangeable cross-reference
interchangeable
2651744Interchangeable
interchangeable cross-reference
interchangeable
1328FInterchangeable
interchangeable cross-reference
interchangeable
120035102Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A0531?
A0531 is a A0531.
What parts can replace A0531?
There are 12 known substitutes for A0531: 10105144-5, 35102, 41-530-01 and 9 more. Substitute compatibility should be verified for your specific system.
Is A0531 still available?
A0531 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026