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28S14-5 — STUD ASSEMBLY,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

28S14-5: STUD ASSEMBLY,TURNLOCK FASTENER.

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.489 INCHES MINIMUM AND 0.511 INCHES MAXIMUM IN, material: STEEL CORROSION RESISTING OVERALL, drive_type: SLOTTED, stud_diameter: 0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN, surface_treatment: CADMIUM AND CHROMATE OVERALL, stud_assembly_style: STUD ASSEMBLY. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-780-9545, 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
28S14-5
NSN: 5325-00-780-9545
FSC: 5325 — Fastening Devices
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)
SPECIFICATIONS
diameter0.489 INCHES MINIMUM AND 0.511 INCHES MAXIMUM IN
materialSTEEL CORROSION RESISTING OVERALL
drive_typeSLOTTED
stud_diameter0.305 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
surface_treatmentCADMIUM AND CHROMATE OVERALL
stud_assembly_styleSTUD ASSEMBLY
securing_device_typeWASHER
eyelet_outside_diameter0.519 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
turnlock_stud_head_styleFILLISTER
material_accommodated_thickness0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN
distance_from_engaging_member_to_largest_bearing_surface_of_head0.371 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
NSN5325-00-780-9545
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 28S14-5 · 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
•
EYELET OUTSIDE DIAMETER: 0.519 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
•
DRIVE TYPE: SLOTTED
•
MATERIAL ACCOMMODATED THICKNESS: 0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN
•
DIAMETER: 0.489 INCHES MINIMUM AND 0.511 INCHES MAXIMUM IN
•
SECURING DEVICE TYPE: WASHER
•
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD: 0.371 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
•
TURNLOCK STUD HEAD STYLE: FILLISTER
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
TECHNICAL CHARACTERISTICS
EYELET OUTSIDE DIAMETER0.519 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
DRIVE TYPESLOTTED
MATERIAL ACCOMMODATED THICKNESS0.150 INCHES MINIMUM AND 0.179 INCHES MAXIMUM IN
DIAMETER0.489 INCHES MINIMUM AND 0.511 INCHES MAXIMUM IN
SECURING DEVICE TYPEWASHER
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD0.371 INCHES MINIMUM AND 0.381 INCHES MAXIMUM IN
TURNLOCK STUD HEAD STYLEFILLISTER
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
STUD ASSEMBLY STYLESTUD ASSEMBLY
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 3
2BS14-5Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
BACS21Z5RReference document
Same NSN cross-reference
Reference document — Secondary reference
1128000-5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 28S14-5?
28S14-5 is a STUD ASSEMBLY,TURNLOCK FASTENER.
What parts can replace 28S14-5?
There are 3 known substitutes for 28S14-5: 2BS14-5, BACS21Z5R, 1128000-5. Substitute compatibility should be verified for your specific system.
What is the NSN for 28S14-5?
28S14-5 is cataloged in the U.S. Government catalog under NSN 5325-00-780-9545. 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.