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Technical Data Sheet
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D8100-1-6 — Technical Data Sheet

✓ 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: 1.010 INCHES MAXIMUM IN, mounting_style: PLAIN W/MOUNTING HOLE, receptacle_width: 0.625 INCHES MAXIMUM IN, receptacle_height: 0.625 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System under NSN 5325-01-032-3665, 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
D8100-1-6
NSN: 5325-01-032-3665
FSC: 5325
CAGE: 97928 — HUCK INTL INC (USA)
SPECIFICATIONS
diameter0.525 INCHES NOMINAL IN
drive_typeCROSS RECESS
grip_length1.010 INCHES MAXIMUM 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
NSN5325-01-032-3665
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: D8100-1-6 · 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
•
GRIP LENGTH: 1.010 INCHES MAXIMUM IN
•
STUD SHANK MAJOR DIAMETER: 0.373 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
MATERIAL ACCOMMODATED THICKNESS: 0.501 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN
•
TURNLOCK MOUNTING HOLE DIAMETER: 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
•
TURNLOCK STUD HEAD STYLE: FLAT COUNTERSUNK
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
MOUNTING STYLE: PLAIN W/MOUNTING HOLE
TECHNICAL CHARACTERISTICS
DRIVE TYPECROSS RECESS
GRIP LENGTH1.010 INCHES MAXIMUM IN
STUD SHANK MAJOR DIAMETER0.373 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
MATERIAL ACCOMMODATED THICKNESS0.501 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN
TURNLOCK MOUNTING HOLE DIAMETER0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
TURNLOCK STUD HEAD STYLEFLAT COUNTERSUNK
TURNLOCK STUD SHANK STYLESTUD SHANK
MOUNTING STYLEPLAIN W/MOUNTING HOLE
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 1008 OR STEEL COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1025 OR STEEL COMP 1030 OR STEEL COMP 1035 OR STEEL COMP 1040 OR STEEL COMP 1045 OR STEEL COMP 1050 OR STEEL COMP 1055 OR STEEL COMP 1060 OR STEEL COMP 1095 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
80S01-5-1AAInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS17731-5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-F-22978InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
8-02-00-3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
FX10-1556-3PInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
8-02-00-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D8100-1-6?
D8100-1-6 is a FASTENER ASSEMBLY,TURNLOCK.
What parts can replace D8100-1-6?
There are 29 known substitutes for D8100-1-6: 80S01-5-1AA, MS17731-5, MIL-F-22978 and 26 more. Substitute compatibility should be verified for your specific system.
Is D8100-1-6 still available?
D8100-1-6 is currently cancelled.
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Last verified: October 2026