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7364143 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7364143: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 3.995 INCHES MINIMUM AND 4.005 INCHES MAXIMUM IN, outside_diameter: 6.365 INCHES MINIMUM AND 6.385 INCHES MAXIMUM IN, surface_treatment: CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL, external_prebent_key_width: 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN, internal_prebent_key_angle: 90.0 DEGREES NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-736-4143, 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
7364143
NSN: 5310-00-736-4143
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter3.995 INCHES MINIMUM AND 4.005 INCHES MAXIMUM IN
outside_diameter6.365 INCHES MINIMUM AND 6.385 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
external_prebent_key_width0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
internal_prebent_key_angle90.0 DEGREES NOMINAL
external_prebent_key_length0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416,TYPE 2,CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633,TYPE 2,CLASS 2 ASSN STD 2ND TREATMENT RESPONSE OVERALL
distance_from_centerline_to_inside_of_prebent_key2.965 INCHES MINIMUM AND 2.975 INCHES MAXIMUM IN
NSN5310-00-736-4143
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7364143 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633,TYPE 2,CLASS 2 ASSN STD 2ND TREATMENT RESPONSE OVERALL
•
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY: 2.965 INCHES MINIMUM AND 2.975 INCHES MAXIMUM IN
•
INTERNAL PREBENT KEY ANGLE: 90.0 DEGREES NOMINAL
•
EXTERNAL PREBENT KEY LENGTH: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 6.365 INCHES MINIMUM AND 6.385 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
•
EXTERNAL PREBENT KEY WIDTH: 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633,TYPE 2,CLASS 2 ASSN STD 2ND TREATMENT RESPONSE OVERALL
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY2.965 INCHES MINIMUM AND 2.975 INCHES MAXIMUM IN
INTERNAL PREBENT KEY ANGLE90.0 DEGREES NOMINAL
EXTERNAL PREBENT KEY LENGTH0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-698 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER6.365 INCHES MINIMUM AND 6.385 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
EXTERNAL PREBENT KEY WIDTH0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
HOLE DIAMETER3.995 INCHES MINIMUM AND 4.005 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
5310007364143Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7364143?
7364143 is a WASHER,KEY.
What parts can replace 7364143?
There is 1 known substitute for 7364143: 5310007364143. Substitute compatibility should be verified for your specific system.
What is the NSN for 7364143?
7364143 is cataloged in the U.S. Government catalog under NSN 5310-00-736-4143. 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.