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PartsTable / COMPONENT / 5293974
5293974 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.031 INCHES NOMINAL IN, overall_diameter: 0.666 INCHES MINIMUM AND 0.670 INCHES MAXIMUM IN, features_provided: CASEHARDENED, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-529-3974, 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
5293974
NSN: 5310-00-529-3974
FSC: 5310
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.031 INCHES NOMINAL IN
overall_diameter0.666 INCHES MINIMUM AND 0.670 INCHES MAXIMUM IN
features_providedCASEHARDENED
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-529-3974
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5293974 · 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
•
PERIPHERAL SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MATERIAL: STEEL OVERALL
•
FEATURES PROVIDED: CASEHARDENED
•
CENTER HOLE SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 0.666 INCHES MINIMUM AND 0.670 INCHES MAXIMUM IN
•
THICKNESS: 0.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MATERIALSTEEL OVERALL
FEATURES PROVIDEDCASEHARDENED
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER0.666 INCHES MINIMUM AND 0.670 INCHES MAXIMUM IN
THICKNESS0.031 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
71-501-00Interchangeable
interchangeable cross-reference
interchangeable
19-003-00Interchangeable
interchangeable cross-reference
interchangeable
96101Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5293974?
5293974 is a WASHER,FLAT.
What parts can replace 5293974?
There are 3 known substitutes for 5293974: 71-501-00, 19-003-00, 96101. Substitute compatibility should be verified for your specific system.
Is 5293974 still available?
5293974 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026