PartsTable
Technical Data Sheet
Download PDF

A5T43 — STUD,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A5T43: 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 OVERALL, drive_type: SLOTTED, grip_length: 0.720 INCHES MINIMUM AND 0.740 INCHES MAXIMUM IN, shank_neck_length: 0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-385-8727, 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
A5T43
NSN: 5325-00-385-8727
FSC: 5325 — Fastening Devices
CAGE: 72794 — SOUTHCO INC (USA)
SPECIFICATIONS
diameter0.557 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
materialSTEEL OVERALL
drive_typeSLOTTED
grip_length0.720 INCHES MINIMUM AND 0.740 INCHES MAXIMUM IN
shank_neck_length0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
securing_device_typeGROMMET
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_thickness0.421 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
material_document_and_classificationSAE 2317 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5325-00-385-8727
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A5T43 · 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 OVERALL
•
DRIVE TYPE: SLOTTED
•
MATERIAL ACCOMMODATED THICKNESS: 0.421 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 2317 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.557 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
•
SHANK NECK LENGTH: 0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN
•
SECURING DEVICE TYPE: GROMMET
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
DRIVE TYPESLOTTED
MATERIAL ACCOMMODATED THICKNESS0.421 INCHES MINIMUM AND 0.430 INCHES MAXIMUM IN
TURNLOCK STUD SHANK STYLESTUD SHANK
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 2317 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.557 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
SHANK NECK LENGTH0.560 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN
SECURING DEVICE TYPEGROMMET
TURNLOCK STUD HEAD STYLEFLAT COUNTERSUNK
STUD SHANK MAJOR DIAMETER0.306 INCHES MINIMUM AND 0.311 INCHES MAXIMUM IN
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
GS520B10-43Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
Ready to buy A5T43?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is A5T43?
A5T43 is a STUD,TURNLOCK FASTENER.
What parts can replace A5T43?
There is 1 known substitute for A5T43: GS520B10-43. Substitute compatibility should be verified for your specific system.
What is the NSN for A5T43?
A5T43 is cataloged in the U.S. Government catalog under NSN 5325-00-385-8727. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — A5T43

✓ 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.