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Technical Data Sheet
PartsTable / COMPONENT / A1-81886 ITEM 30
A1-81886 ITEM 30 ✓ 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, hole_diameter: 0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 4.250 INCHES NOMINAL IN, aperture_width: 2.750 INCHES NOMINAL IN, overall_length: 12.250 INCHES NOMINAL IN, aperture_length: 10.750 INCHES NOMINAL 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 5330-01-507-0935, 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
A1-81886 ITEM 30
NSN: 5330-01-507-0935
FSC: 5330
CAGE: 89357 — EVOQUA WATER TECHNOLOGIES LLC (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
hole_diameter0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width4.250 INCHES NOMINAL IN
aperture_width2.750 INCHES NOMINAL IN
overall_length12.250 INCHES NOMINAL IN
aperture_length10.750 INCHES NOMINAL IN
special_featuresHOLES ALONG LENGTH CENTERED FROM OUTSIDE EDGE OF LENGTH AT 3 1/4IN, 6 1/8IN, 9 IN, 11 7/8IN, AND 12 1/4IN IN
style_designatorNON-CIRCULAR
bolt_hole_quantity12
end_item_identificationPANEL,CTRL,CH
cross-sectional_thickness0.125 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5330-01-507-0935
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A1-81886 ITEM 30 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
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR OVERALL
•
HOLE DIAMETER: 0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
CROSS-SECTIONAL THICKNESS: 0.125 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 2.875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG WIDTH: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH12.250 INCHES NOMINAL IN
END ITEM IDENTIFICATIONPANEL,CTRL,CH
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
SPECIAL FEATURESHOLES ALONG LENGTH CENTERED FROM OUTSIDE EDGE OF LENGTH AT 3 1/4IN, 6 1/8IN, 9 IN, 11 7/8IN, AND 12 1/4IN IN
HOLE DIAMETER0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS0.125 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH2.875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE EDGE TO INSIDE EDGE SMALLEST DISTANCE ALONG WIDTH0.750 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH3.875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
APERTURE WIDTH2.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
37J41PC51GASKETInterchangeable
interchangeable cross-reference
interchangeable
567-4105-1160781PCF0R6Interchangeable
interchangeable cross-reference
interchangeable
37J41PC12GASKETInterchangeable
interchangeable cross-reference
interchangeable
82-049Interchangeable
interchangeable cross-reference
interchangeable
5315PL1630570Interchangeable
interchangeable cross-reference
interchangeable
92383A154Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1-81886 ITEM 30?
A1-81886 ITEM 30 is a GASKET.
What parts can replace A1-81886 ITEM 30?
There are 9 known substitutes for A1-81886 ITEM 30: 37J41PC51GASKET, 567-4105-1160781PCF0R6, 37J41PC12GASKET and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A1-81886 ITEM 30?
A1-81886 ITEM 30 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-01-507-0935. 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