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Technical Data Sheet
PartsTable / COMPONENT / D8100-1-4
D8100-1-4 ✓ 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: 0.525 INCHES NOMINAL IN, drive_type: CROSS RECESS, grip_length: 0.870 INCHES NOMINAL IN, mounting_style: PLAIN W/MOUNTING HOLE, receptacle_width: 0.625 INCHES MAXIMUM IN, receptacle_height: 0.625 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-478-3317, 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
D8100-1-4
NSN: 5325-00-478-3317
FSC: 5325
CAGE: 17446 — HUCK INTERNATIONAL, INC (USA)
SPECIFICATIONS
diameter0.525 INCHES NOMINAL IN
drive_typeCROSS RECESS
grip_length0.870 INCHES NOMINAL IN
mounting_stylePLAIN W/MOUNTING HOLE
receptacle_width0.625 INCHES MAXIMUM IN
receptacle_height0.625 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
turnlock_stud_head_styleFLAT COUNTERSUNK
receptacle_overall_length1.135 INCHES MAXIMUM IN
stud_shank_major_diameter0.373 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
turnlock_receptacle_styleRECEPTACLE
turnlock_stud_shank_styleSTUD SHANK
NSN5325-00-478-3317
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: D8100-1-4 · 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
•
DRIVE TYPE: CROSS RECESS
•
RECEPTACLE WIDTH: 0.625 INCHES MAXIMUM IN
•
MATERIAL ACCOMMODATED THICKNESS: 0.361 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
RECEPTACLE HEIGHT: 0.625 INCHES MAXIMUM IN
•
TURNLOCK STUD HEAD STYLE: FLAT COUNTERSUNK
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
TURNLOCK MOUNTING HOLE DIAMETER: 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
DRIVE TYPECROSS RECESS
RECEPTACLE WIDTH0.625 INCHES MAXIMUM IN
MATERIAL ACCOMMODATED THICKNESS0.361 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
TURNLOCK STUD SHANK STYLESTUD SHANK
RECEPTACLE HEIGHT0.625 INCHES MAXIMUM IN
TURNLOCK STUD HEAD STYLEFLAT COUNTERSUNK
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
TURNLOCK MOUNTING HOLE DIAMETER0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
MOUNTING STYLEPLAIN W/MOUNTING HOLE
NONDEFINITIVE SPEC/STD DATA1 TYPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
80S01-5-1AAInterchangeable
interchangeable cross-reference
interchangeable
MS17731-5Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-22978Interchangeable
interchangeable cross-reference
interchangeable
8-02-00-3Interchangeable
interchangeable cross-reference
interchangeable
FX10-1556-3PInterchangeable
interchangeable cross-reference
interchangeable
8-02-00-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D8100-1-4?
D8100-1-4 is a FASTENER ASSEMBLY,TURNLOCK.
What parts can replace D8100-1-4?
There are 26 known substitutes for D8100-1-4: 80S01-5-1AA, MS17731-5, MIL-F-22978 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D8100-1-4?
D8100-1-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-478-3317. 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