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PartsTable / COMPONENT / FE7500-8-B-4
FE7500-8-B-4 ✓ 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 FASTENER ASSEMBLY,TURNLOCK is a the manufacturer industrial component. Key specifications include diameter: 0.420 INCHES NOMINAL IN, material: STEEL COMP 302 LOCKSPRING, drive_type: SLOTTED, grip_length: 0.337 INCHES NOMINAL IN, minor_diameter: 0.215 INCHES NOMINAL IN, mounting_style: FLOATING NUT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-257-6996, 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
FE7500-8-B-4
NSN: 5325-01-257-6996
FSC: 5325
CAGE: 97928 — HUCK INTL INC (USA)
SPECIFICATIONS
diameter0.420 INCHES NOMINAL IN
materialSTEEL COMP 302 LOCKSPRING
drive_typeSLOTTED
grip_length0.337 INCHES NOMINAL IN
minor_diameter0.215 INCHES NOMINAL IN
mounting_styleFLOATING NUT
extension_length0.283 INCHES NOMINAL IN
stud_head_height0.290 INCHES NOMINAL IN
surface_treatmentOXIDE FILM WASHER
turnlock_stud_head_styleKNURLED
stud_shank_major_diameter0.258 INCHES NOMINAL IN
turnlock_receptacle_styleFLOATING
NSN5325-01-257-6996
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: FE7500-8-B-4 · 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: STEEL COMP 301 WASHER
•
SURFACE TREATMENT: ANODIZE HEAD
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-A-493-63 ASSN STD SINGLE MATERIAL RESPONSE STUD
•
MOUNTING STYLE: FLOATING NUT
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 301 WASHER
SURFACE TREATMENTANODIZE HEAD
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A-493-63 ASSN STD SINGLE MATERIAL RESPONSE STUD
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8 FED SPEC SINGLE MATERIAL RESPONSE HEAD
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-W-225/8 FED SPEC SINGLE MATERIAL RESPONSE RECEPTACLE
MATERIALALUMINUM ALLOY 6061 HEAD
MOUNTING STYLEFLOATING NUT
MATERIALSTEEL COMP 302 STUD
SURFACE TREATMENTOXIDE FILM STUD
MATERIALALUMINUM ALLOY 6061 RECEPTACLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
FFB571TYPEA2CLASSCInterchangeable
interchangeable cross-reference
interchangeable
C270Interchangeable
interchangeable cross-reference
interchangeable
S290Interchangeable
interchangeable cross-reference
interchangeable
90-0099Interchangeable
interchangeable cross-reference
interchangeable
10560-10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FE7500-8-B-4?
FE7500-8-B-4 is a FASTENER ASSEMBLY,TURNLOCK.
What parts can replace FE7500-8-B-4?
There are 5 known substitutes for FE7500-8-B-4: FFB571TYPEA2CLASSC, C270, S290 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FE7500-8-B-4?
FE7500-8-B-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-257-6996. 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