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13014028-5 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

13014028-5: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.056 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN, hole_diameter: 0.276 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN, overall_diameter: 0.495 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, surface_treatment: TIN AND ZINC OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-697-8082, 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
13014028-5
NSN: 5310-01-697-8082
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.056 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN
hole_diameter0.276 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
overall_diameter0.495 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
surface_treatmentTIN AND ZINC OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identification01-544-9638
cross-sectional_shape_styleRECTANGULAR
part_name_assigned_by_controlling_agencyWASHER, FLAT-.250 INCH DIAMETER IN
NSN5310-01-697-8082
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 13014028-5 · 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: 0.495 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: TIN AND ZINC OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.495 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTTIN AND ZINC OVERALL
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, FLAT-.250 INCH DIAMETER IN
END ITEM IDENTIFICATION01-544-9638
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.276 INCHES MINIMUM AND 0.296 INCHES MAXIMUM IN
THICKNESS0.056 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
13014028Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 13014028-5?
13014028-5 is a WASHER,FLAT.
What parts can replace 13014028-5?
There is 1 known substitute for 13014028-5: 13014028. Substitute compatibility should be verified for your specific system.
What is the NSN for 13014028-5?
13014028-5 is cataloged in the U.S. Government catalog under NSN 5310-01-697-8082. 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.