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GS520C10-50 — STUD,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GS520C10-50: STUD,TURNLOCK FASTENER.

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.557 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN, material: STEEL OR STEEL COMP 8620 STUD, drive_type: SLOTTED, grip_length: 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN, shank_neck_length: 0.600 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN, surface_treatment: CADMIUM STUD. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-058-4734, 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
GS520C10-50
NSN: 5325-01-058-4734
FSC: 5325 — Fastening Devices
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
diameter0.557 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
materialSTEEL OR STEEL COMP 8620 STUD
drive_typeSLOTTED
grip_length0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN
shank_neck_length0.600 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN
surface_treatmentCADMIUM STUD
turnlock_stud_head_styleFLAT COUNTERSUNK
stud_shank_major_diameter0.306 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN
turnlock_stud_shank_styleSTUD SHANK
material_accommodated_thickness0.491 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
surface_treatment_document_and_classificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE STUD
NSN5325-01-058-4734
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GS520C10-50 · 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 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE STUD
•
DRIVE TYPE: SLOTTED
•
MATERIAL ACCOMMODATED THICKNESS: 0.491 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
DIAMETER: 0.557 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
•
SHANK NECK LENGTH: 0.600 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN
•
TURNLOCK STUD HEAD STYLE: FLAT COUNTERSUNK
•
STUD SHANK MAJOR DIAMETER: 0.306 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE STUD
DRIVE TYPESLOTTED
MATERIAL ACCOMMODATED THICKNESS0.491 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
TURNLOCK STUD SHANK STYLESTUD SHANK
DIAMETER0.557 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
SHANK NECK LENGTH0.600 INCHES MINIMUM AND 0.620 INCHES MAXIMUM IN
TURNLOCK STUD HEAD STYLEFLAT COUNTERSUNK
STUD SHANK MAJOR DIAMETER0.306 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM STUD
MATERIALSTEEL OR STEEL COMP 8620 STUD
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 1
F5T50Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GS520C10-50?
GS520C10-50 is a STUD,TURNLOCK FASTENER.
What parts can replace GS520C10-50?
There is 1 known substitute for GS520C10-50: F5T50. Substitute compatibility should be verified for your specific system.
What is the NSN for GS520C10-50?
GS520C10-50 is cataloged in the U.S. Government catalog under NSN 5325-01-058-4734. 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.