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FIT3075 ✓ 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

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.615 INCHES MAXIMUM IN, material: STEEL COMP 4037 OR STEEL COMP 8740 OVERALL, drive_type: SOCKET, grip_length: 0.361 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN, extension_length: 0.334 INCHES NOMINAL IN, special_features: 0.250-28 UNF-3B LEAD THREAD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-553-2656, 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
FIT3075
NSN: 5325-00-553-2656
FSC: 5325
CAGE: 58998 — FASTENER INNOVATION TECHNOLOGY, INC. DBA F I T (USA)
SPECIFICATIONS
diameter0.615 INCHES MAXIMUM IN
materialSTEEL COMP 4037 OR STEEL COMP 8740 OVERALL
drive_typeSOCKET
grip_length0.361 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
extension_length0.334 INCHES NOMINAL IN
special_features0.250-28 UNF-3B LEAD THREAD
surface_treatmentCADMIUM AND CHROMATE OVERALL
securing_device_typeRING
turnlock_stud_head_styleFILLISTER
stud_shank_major_diameter0.3730 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN
turnlock_stud_shank_styleSTUD SHANK
material_accommodated_thickness0.361 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
NSN5325-00-553-2656
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FIT3075 · 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
•
DIAMETER: 0.594 INCHES MINIMUM AND 0.615 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
SECURING DEVICE TYPE: RING
•
STUD SHANK MAJOR DIAMETER: 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN
•
MATERIAL ACCOMMODATED THICKNESS: 0.641 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 8740 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
DIAMETER0.594 INCHES MINIMUM AND 0.615 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
SECURING DEVICE TYPERING
STUD SHANK MAJOR DIAMETER0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM IN
MATERIAL ACCOMMODATED THICKNESS0.641 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN
MATERIALSTEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TURNLOCK STUD SHANK STYLESTUD SHANK
GRIP LENGTH1.010 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
484372-6Interchangeable
interchangeable cross-reference
interchangeable
CA17036-6HSInterchangeable
interchangeable cross-reference
interchangeable
CA17036-6Interchangeable
interchangeable cross-reference
interchangeable
CA17036-3HSInterchangeable
interchangeable cross-reference
interchangeable
484372-3Interchangeable
interchangeable cross-reference
interchangeable
CA17036-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FIT3075?
FIT3075 is a STUD,TURNLOCK FASTENER.
What parts can replace FIT3075?
There are 12 known substitutes for FIT3075: 484372-6, CA17036-6HS, CA17036-6 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FIT3075?
FIT3075 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-553-2656. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026