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40-0039302 — Technical Data Sheet

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— · 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,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.446 INCHES MINIMUM AND 0.459 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM, outside_diameter: 0.779 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND, surface_treatment: ZINC AND CHROMATE OR CADMIUM OVERALL. This part is cataloged in the Federal Logistics Information System under NSN 5310-01-414-5640, 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
40-0039302
NSN: 5310-01-414-5640
FSC: 5310
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.446 INCHES MINIMUM AND 0.459 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
outside_diameter0.779 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentZINC AND CHROMATE OR CADMIUM OVERALL
material_thickness0.109 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
surface_treatment_document_and_classificationQQ-Z-325, TY2, CL3 FED SPEC 1ST TREATMENT RESPONSE OVERALL
NSN5310-01-414-5640
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 40-0039302 · 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
•
OUTSIDE DIAMETER: 0.779 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.109 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
•
SURFACE TREATMENT: ZINC AND CHROMATE OR CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.446 INCHES MINIMUM AND 0.459 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-Z-325, TY2, CL3 FED SPEC 1ST TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER0.779 INCHES MAXIMUM IN
MATERIAL THICKNESS0.109 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
SURFACE TREATMENTZINC AND CHROMATE OR CADMIUM OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.446 INCHES MINIMUM AND 0.459 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-Z-325, TY2, CL3 FED SPEC 1ST TREATMENT RESPONSE OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
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AWS A5.1/A5.1MInterchangeableGOVERNMENT REGISTRY
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335AInterchangeableGOVERNMENT REGISTRY
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LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40-0039302?
40-0039302 is a WASHER,LOCK.
What parts can replace 40-0039302?
There are 13 known substitutes for 40-0039302: 4E07, DX256, 110405 and 10 more. Substitute compatibility should be verified for your specific system.
Is 40-0039302 still available?
40-0039302 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: October 2026