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Technical Data Sheet
PartsTable / COMPONENT / 2810H37-021
2810H37-021 ✓ 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: ASBESTOS AND COPPER OVERALL, outside_diameter: 2.781 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 2.562 INCHES NOMINAL IN, fsc_application_data: ENGINE,RECIPROCATING,AIRCRAFT, cross-sectional_thickness: 0.078 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-522-5165, 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
2810H37-021
NSN: 5330-00-522-5165
FSC: 5330
CAGE: 81996 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialASBESTOS AND COPPER OVERALL
outside_diameter2.781 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter2.562 INCHES NOMINAL IN
fsc_application_dataENGINE,RECIPROCATING,AIRCRAFT
cross-sectional_thickness0.078 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL AND METALLIC MATERIALS
NSN5330-00-522-5165
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2810H37-021 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
•
OUTSIDE DIAMETER: 2.781 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: METAL AND METALLIC MATERIALS
•
CROSS-SECTIONAL THICKNESS: 0.078 INCHES NOMINAL IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL: ASBESTOS AND COPPER OVERALL
•
FSC APPLICATION DATA: ENGINE,RECIPROCATING,AIRCRAFT
•
APERTURE DIAMETER: 2.562 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER2.781 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEMETAL AND METALLIC MATERIALS
CROSS-SECTIONAL THICKNESS0.078 INCHES NOMINAL IN
STYLE DESIGNATORCIRCULAR
MATERIALASBESTOS AND COPPER OVERALL
FSC APPLICATION DATAENGINE,RECIPROCATING,AIRCRAFT
APERTURE DIAMETER2.562 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
22-103Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-22520Interchangeable
interchangeable cross-reference
interchangeable
M22520/2-03Interchangeable
interchangeable cross-reference
interchangeable
WU64455Interchangeable
interchangeable cross-reference
interchangeable
3060-3Interchangeable
interchangeable cross-reference
interchangeable
AN3060-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2810H37-021?
2810H37-021 is a GASKET.
What parts can replace 2810H37-021?
There are 18 known substitutes for 2810H37-021: 22-103, MIL-C-22520, M22520/2-03 and 15 more. Substitute compatibility should be verified for your specific system.
Is 2810H37-021 still available?
2810H37-021 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