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A41403 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A41403: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON OVERALL, thickness: 0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN, hole_diameter: 0.376 INCHES MINIMUM AND 0.386 INCHES MAXIMUM IN, overall_diameter: 0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-022-0666, 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
A41403
NSN: 5310-00-022-0666
FSC: 5310 — Nuts and Washers
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON OVERALL
thickness0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
hole_diameter0.376 INCHES MINIMUM AND 0.386 INCHES MAXIMUM IN
overall_diameter0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-022-0666
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A41403 · 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: 0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: PLASTIC POLYAMIDE NYLON OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.376 INCHES MINIMUM AND 0.386 INCHES MAXIMUM IN
•
THICKNESS: 0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALPLASTIC POLYAMIDE NYLON OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.376 INCHES MINIMUM AND 0.386 INCHES MAXIMUM IN
THICKNESS0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
R34764Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A41403?
A41403 is a WASHER,FLAT.
What parts can replace A41403?
There is 1 known substitute for A41403: R34764. Substitute compatibility should be verified for your specific system.
What is the NSN for A41403?
A41403 is cataloged in the U.S. Government catalog under NSN 5310-00-022-0666. 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.