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S4650-15-50 — STUD,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

S4650-15-50: STUD,TURNLOCK FASTENER.

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.500 INCHES NOMINAL IN, material: STEEL COMP 4140 OVERALL, grip_length: 0.744 INCHES MINIMUM AND 0.754 INCHES MAXIMUM IN, special_features: 0.187 IN. MIN.

0.192 IN. MAX. HOLE ON HEAD,0.062 IN.

MIN. 0.065 IN. MAX.

HOLE ON STUD IN, stud_head_height: 0.500 INCHES NOMINAL IN, surface_treatment: CADMIUM AND CHROMATE OVERALL. This part is cataloged in the U.S. Government catalog under NSN 5325-01-324-4278, 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
S4650-15-50
NSN: 5325-01-324-4278
FSC: 5325 — Fastening Devices
CAGE: 23893 — PANELOC CORP THE (USA)
SPECIFICATIONS
diameter0.500 INCHES NOMINAL IN
materialSTEEL COMP 4140 OVERALL
grip_length0.744 INCHES MINIMUM AND 0.754 INCHES MAXIMUM IN
special_features0.187 IN. MIN. 0.192 IN. MAX. HOLE ON HEAD,0.062 IN. MIN. 0.065 IN. MAX. HOLE ON STUD IN
stud_head_height0.500 INCHES NOMINAL IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
turnlock_stud_head_styleFLAT FILLISTER
stud_shank_major_diameter0.243 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
turnlock_stud_shank_styleSTUD SHANK
material_accommodated_thickness0.744 INCHES MINIMUM AND 0.754 INCHES MAXIMUM IN
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5325-01-324-4278
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: S4650-15-50 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL ACCOMMODATED THICKNESS: 0.744 INCHES MINIMUM AND 0.754 INCHES MAXIMUM IN
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
DIAMETER: 0.500 INCHES NOMINAL IN
•
STUD HEAD HEIGHT: 0.500 INCHES NOMINAL IN
•
TURNLOCK STUD HEAD STYLE: FLAT FILLISTER
•
STUD SHANK MAJOR DIAMETER: 0.243 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL ACCOMMODATED THICKNESS0.744 INCHES MINIMUM AND 0.754 INCHES MAXIMUM IN
TURNLOCK STUD SHANK STYLESTUD SHANK
DIAMETER0.500 INCHES NOMINAL IN
STUD HEAD HEIGHT0.500 INCHES NOMINAL IN
TURNLOCK STUD HEAD STYLEFLAT FILLISTER
STUD SHANK MAJOR DIAMETER0.243 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
SPECIAL FEATURES0.187 IN. MIN. 0.192 IN. MAX. HOLE ON HEAD,0.062 IN. MIN. 0.065 IN. MAX. HOLE ON STUD IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MATERIALSTEEL COMP 4140 OVERALL
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES 2
3M1167-4-50Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
S4650-15-60Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S4650-15-50?
S4650-15-50 is a STUD,TURNLOCK FASTENER.
What parts can replace S4650-15-50?
There are 2 known substitutes for S4650-15-50: 3M1167-4-50, S4650-15-60. Substitute compatibility should be verified for your specific system.
What is the NSN for S4650-15-50?
S4650-15-50 is cataloged in the U.S. Government catalog under NSN 5325-01-324-4278. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.