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Technical Data Sheet
PartsTable / COMPONENT / MS17731-7
MS17731-7 ✓ 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: 1.080 INCHES MAXIMUM 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 5325-01-032-3664, 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
MS17731-7
NSN: 5325-01-032-3664
FSC: 5325
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
diameter0.525 INCHES NOMINAL IN
drive_typeCROSS RECESS
grip_length1.080 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
NSN5325-01-032-3664
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MS17731-7 · 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
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
•
MOUNTING STYLE: PLAIN W/MOUNTING HOLE
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
RECEPTACLE HEIGHT: 0.625 INCHES MAXIMUM IN
•
MATERIAL ACCOMMODATED THICKNESS: 0.571 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
•
RECEPTACLE OVERALL LENGTH: 1.135 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
TURNLOCK STUD SHANK STYLESTUD SHANK
NONDEFINITIVE SPEC/STD DATA1 TYPE
MOUNTING STYLEPLAIN W/MOUNTING HOLE
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2 CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
RECEPTACLE HEIGHT0.625 INCHES MAXIMUM IN
MATERIAL ACCOMMODATED THICKNESS0.571 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
RECEPTACLE OVERALL LENGTH1.135 INCHES MAXIMUM IN
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 31
10082360Interchangeable
interchangeable cross-reference
interchangeable
MS90728-6Interchangeable
interchangeable cross-reference
interchangeable
803-5959276-06Interchangeable
interchangeable cross-reference
interchangeable
80S01-5-1AAInterchangeable
interchangeable cross-reference
interchangeable
MS17731-5Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-22978Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS17731-7?
MS17731-7 is a FASTENER ASSEMBLY,TURNLOCK.
What parts can replace MS17731-7?
There are 31 known substitutes for MS17731-7: 10082360, MS90728-6, 803-5959276-06 and 28 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS17731-7?
MS17731-7 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-032-3664. 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