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5S5-18 — STUD,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5S5-18: STUD,TURNLOCK FASTENER.

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.294 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN, material: STEEL RETAINER, drive_type: SLOTTED, grip_length: 0.301 INCHES NOMINAL IN, special_features: WASHER ATTACHED TO BEARING SURFACE OF HEAD, stud_head_height: 0.069 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-616-5281, 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
5S5-18
NSN: 5325-00-616-5281
FSC: 5325 — Fastening Devices
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)
SPECIFICATIONS
diameter0.294 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
materialSTEEL RETAINER
drive_typeSLOTTED
grip_length0.301 INCHES NOMINAL IN
special_featuresWASHER ATTACHED TO BEARING SURFACE OF HEAD
stud_head_height0.069 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN
surface_treatmentCADMIUM RETAINER
turnlock_stud_head_styleFLAT FILLISTER
stud_shank_major_diameter0.102 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
turnlock_stud_shank_styleSTUD SHANK
material_accommodated_thickness0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE STUD
NSN5325-00-616-5281
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5S5-18 · 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
•
DRIVE TYPE: SLOTTED
•
MATERIAL ACCOMMODATED THICKNESS: 0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE STUD
•
DIAMETER: 0.294 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
•
STUD HEAD HEIGHT: 0.069 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN
•
TURNLOCK STUD HEAD STYLE: FLAT FILLISTER
•
STUD SHANK MAJOR DIAMETER: 0.102 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DRIVE TYPESLOTTED
MATERIAL ACCOMMODATED THICKNESS0.275 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
TURNLOCK STUD SHANK STYLESTUD SHANK
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC SINGLE MATERIAL RESPONSE STUD
DIAMETER0.294 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
STUD HEAD HEIGHT0.069 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN
TURNLOCK STUD HEAD STYLEFLAT FILLISTER
STUD SHANK MAJOR DIAMETER0.102 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
SPECIAL FEATURESWASHER ATTACHED TO BEARING SURFACE OF HEAD
SURFACE TREATMENTCADMIUM 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 2
135342-18Reference document
Same NSN cross-reference
Reference document — Secondary reference
CE213740Reference 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 5S5-18?
5S5-18 is a STUD,TURNLOCK FASTENER.
What parts can replace 5S5-18?
There are 2 known substitutes for 5S5-18: 135342-18, CE213740. Substitute compatibility should be verified for your specific system.
What is the NSN for 5S5-18?
5S5-18 is cataloged in the U.S. Government catalog under NSN 5325-00-616-5281. 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.