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Technical Data Sheet
PartsTable / COMPONENT / A4-82042
A4-82042 ✓ 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 CHLOROPRENE CLASS CR OVERALL, overall_width: 2.500 INCHES NOMINAL IN, aperture_width: 1.625 INCHES NOMINAL IN, overall_length: 4.000 INCHES NOMINAL IN, aperture_length: 3.125 INCHES NOMINAL IN, style_designator: NON-CIRCULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-507-0945, 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
A4-82042
NSN: 5330-01-507-0945
FSC: 5330
CAGE: 89357 — EVOQUA WATER TECHNOLOGIES LLC (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
overall_width2.500 INCHES NOMINAL IN
aperture_width1.625 INCHES NOMINAL IN
overall_length4.000 INCHES NOMINAL IN
aperture_length3.125 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
inside_corner_radius0.250 INCHES NOMINAL IN
end_item_identificationPANEL,CTRL,CH
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
part_name_assigned_by_controlling_agencyGASKET,CIRCUIT BREAKER
outside_edge_to_inside_edge_smallest_distance_along_width0.437 INCHES NOMINAL IN
NSN5330-01-507-0945
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A4-82042 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: 0.125 INCHES NOMINAL IN
•
APERTURE WIDTH: 1.625 INCHES NOMINAL IN
•
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG WIDTH: 0.437 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
APERTURE WIDTH1.625 INCHES NOMINAL IN
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG WIDTH0.437 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR
END ITEM IDENTIFICATIONPANEL,CTRL,CH
OVERALL LENGTH4.000 INCHES NOMINAL IN
OVERALL WIDTH2.500 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
INSIDE CORNER RADIUS0.250 INCHES NOMINAL IN
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG LENGTH0.437 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
8204-2Interchangeable
interchangeable cross-reference
interchangeable
5977004949720Interchangeable
interchangeable cross-reference
interchangeable
386-002-021Interchangeable
interchangeable cross-reference
interchangeable
4250-020-16Interchangeable
interchangeable cross-reference
interchangeable
122-1-19Interchangeable
interchangeable cross-reference
interchangeable
PH16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A4-82042?
A4-82042 is a GASKET.
What parts can replace A4-82042?
There are 12 known substitutes for A4-82042: 8204-2, 5977004949720, 386-002-021 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A4-82042?
A4-82042 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-507-0945. 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