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5281450 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5281450: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.0590 INCHES MINIMUM AND 0.0660 INCHES MAXIMUM IN, hole_diameter: 0.518 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN, hardness_rating: 22.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM, overall_diameter: 0.870 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-528-1450, 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
5281450
NSN: 5310-00-528-1450
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.0590 INCHES MINIMUM AND 0.0660 INCHES MAXIMUM IN
hole_diameter0.518 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
hardness_rating22.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM
overall_diameter0.870 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-528-1450
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5281450 · 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: 0.870 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN
•
HARDNESS RATING: 22.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.518 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
•
THICKNESS: 0.0590 INCHES MINIMUM AND 0.0660 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.870 INCHES MINIMUM AND 0.874 INCHES MAXIMUM IN
HARDNESS RATING22.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.518 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
THICKNESS0.0590 INCHES MINIMUM AND 0.0660 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
838472Reference 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 5281450?
5281450 is a WASHER,FLAT.
What parts can replace 5281450?
There is 1 known substitute for 5281450: 838472. Substitute compatibility should be verified for your specific system.
What is the NSN for 5281450?
5281450 is cataloged in the U.S. Government catalog under NSN 5310-00-528-1450. 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.