PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 4002-6K
4002-6K ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.750 INCHES NOMINAL IN, material: STEEL EJECTOR SPRING, eyelet_length: 0.322 INCHES NOMINAL IN, stud_head_height: 0.340 INCHES NOMINAL IN, surface_treatment: CADMIUM AND CHROMATE OVERALL, stud_assembly_style: STUD ASSEMBLY. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-639-5099, 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
4002-6K
NSN: 5325-00-639-5099
FSC: 5325
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)
SPECIFICATIONS
diameter0.750 INCHES NOMINAL IN
materialSTEEL EJECTOR SPRING
eyelet_length0.322 INCHES NOMINAL IN
special_featuresKNURLED HEAD; MATERIAL: STEEL EJECTOR SPRING,STEEL COMP 1009 OR STEEL COMP 1050 OR STEEL COMP 1112 EYELET,STEEL COMP 1112 HEAD,STEEL PIN,STEEL COMP 4037 STUD
stud_head_height0.340 INCHES NOMINAL IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
stud_assembly_styleSTUD ASSEMBLY
eyelet_outside_diameter0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
turnlock_stud_head_styleSTUD HEAD
material_accommodated_thickness0.201 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
material_document_and_classificationQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
NSN5325-00-639-5099
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 4002-6K · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING
•
MATERIAL ACCOMMODATED THICKNESS: 0.201 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
•
MATERIAL: STEEL EJECTOR SPRING
•
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD: 0.573 INCHES MINIMUM AND 0.588 INCHES MAXIMUM IN
•
STUD ASSEMBLY STYLE: STUD ASSEMBLY
•
DIAMETER: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE PIN
MATERIAL ACCOMMODATED THICKNESS0.201 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
MATERIALSTEEL EJECTOR SPRING
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD0.573 INCHES MINIMUM AND 0.588 INCHES MAXIMUM IN
STUD ASSEMBLY STYLESTUD ASSEMBLY
DIAMETER0.750 INCHES NOMINAL IN
MATERIALSTEEL COMP 1009 OR STEEL COMP 1050 OR STEEL EYELET
SPECIAL FEATURESKNURLED HEAD; MATERIAL: STEEL EJECTOR SPRING,STEEL COMP 1009 OR STEEL COMP 1050 OR STEEL COMP 1112 EYELET,STEEL COMP 1112 HEAD,STEEL PIN,STEEL COMP 4037 STUD
EYELET LENGTH0.322 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
53624Interchangeable
interchangeable cross-reference
interchangeable
B94.11MInterchangeable
interchangeable cross-reference
interchangeable
19692N PIECE 2Interchangeable
interchangeable cross-reference
interchangeable
N53624Interchangeable
interchangeable cross-reference
interchangeable
B2096 PIECE 36FInterchangeable
interchangeable cross-reference
interchangeable
42054Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4002-6K?
4002-6K is a STUD ASSEMBLY,TURNLOCK FASTENER.
What parts can replace 4002-6K?
There are 8 known substitutes for 4002-6K: 53624, B94.11M, 19692N PIECE 2 and 5 more. Substitute compatibility should be verified for your specific system.
Is 4002-6K still available?
4002-6K is currently cancelled.
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Last verified: July 2026