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54143-3 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

54143-3: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.228 INCHES MINIMUM AND 0.236 INCHES MAXIMUM IN, outside_diameter: 0.460 INCHES NOMINAL IN, style_designator: FLAT INTERNAL TEETH, surface_treatment: ZINC OVERALL, material_thickness: 0.012 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-013-8697, 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
54143-3
NSN: 5310-00-013-8697
FSC: 5310 — Nuts and Washers
CAGE: 92878 — HDT EXPEDITIONARY SYSTEMS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.228 INCHES MINIMUM AND 0.236 INCHES MAXIMUM IN
outside_diameter0.460 INCHES NOMINAL IN
style_designatorFLAT INTERNAL TEETH
surface_treatmentZINC OVERALL
material_thickness0.012 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN
NSN5310-00-013-8697
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 54143-3 · 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
•
STYLE DESIGNATOR: FLAT INTERNAL TEETH
•
OUTSIDE DIAMETER: 0.460 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.012 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.228 INCHES MINIMUM AND 0.236 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORFLAT INTERNAL TEETH
OUTSIDE DIAMETER0.460 INCHES NOMINAL IN
MATERIAL THICKNESS0.012 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN
SURFACE TREATMENTZINC OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.228 INCHES MINIMUM AND 0.236 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 3
5310PL0907506Reference document
Same NSN cross-reference
Reference document — Informative reference only
91560833Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
99W10-01A1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 54143-3?
54143-3 is a WASHER,LOCK.
What parts can replace 54143-3?
There are 3 known substitutes for 54143-3: 5310PL0907506, 91560833, 99W10-01A1. Substitute compatibility should be verified for your specific system.
What is the NSN for 54143-3?
54143-3 is cataloged in the U.S. Government catalog under NSN 5310-00-013-8697. 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.