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A402X3 — GASKET

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A402X3: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: WOOL OR COTTON OR CELLULOSE OR GLASS OVERALL, thickness: 0.062 INCHES NOMINAL IN, hole_diameter: 0.250 INCHES NOMINAL IN, outside_diameter: 0.438 INCHES NOMINAL IN, overall_diameter: 0.437 INCHES NOMINAL IN, special_features: FIBER MATERIAL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-254-2045, 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
A402X3
NSN: 5310-00-254-2045
NIINs: 002542045, 002989635
FSC: 5310 — Nuts and Washers
CAGE: 09605 — BOMAG USA SUB OF UNITED DOMINION INDUSTRIES LTD (USA)
SPECIFICATIONS
materialWOOL OR COTTON OR CELLULOSE OR GLASS OVERALL
thickness0.062 INCHES NOMINAL IN
hole_diameter0.250 INCHES NOMINAL IN
outside_diameter0.438 INCHES NOMINAL IN
overall_diameter0.437 INCHES NOMINAL IN
special_featuresFIBER MATERIAL
aperture_diameter0.250 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_thickness0.062 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
NSN5310-00-254-2045
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A402X3 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OVERALL DIAMETER: 0.437 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: WOOL OR COTTON OR CELLULOSE OR GLASS OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.250 INCHES NOMINAL IN
•
THICKNESS: 0.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.437 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALWOOL OR COTTON OR CELLULOSE OR GLASS OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.250 INCHES NOMINAL IN
THICKNESS0.062 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
10658P11Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
295796R1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A402X3?
A402X3 is a GASKET.
What parts can replace A402X3?
There are 2 known substitutes for A402X3: 10658P11, 295796R1. Substitute compatibility should be verified for your specific system.
What is the NSN for A402X3?
A402X3 is cataloged in the U.S. Government catalog under NSN 5310-00-254-2045. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.