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128-0165-012 — STUD,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

128-0165-012: STUD,TURNLOCK FASTENER.

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, material: STEEL COMP 303 OR STEEL COMP 303SE OVERALL, drive_type: SOCKET, grip_length: 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, extension_length: 0.219 INCHES NOMINAL IN, special_features: 2 LEAD THD,0.112-40UNC-2B. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-353-6058, 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
128-0165-012
NSN: 5325-01-353-6058
FSC: 5325 — Fastening Devices
CAGE: 94756 — THE BOEING COMPANY DIV LEGACY BOEING HB1 (USA)
SPECIFICATIONS
diameter0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
materialSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
drive_typeSOCKET
grip_length0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
extension_length0.219 INCHES NOMINAL IN
special_features2 LEAD THD,0.112-40UNC-2B
surface_treatmentCADMIUM AND CHROMATE OVERALL
securing_device_typeWASHER
turnlock_stud_head_styleFILLISTER
stud_shank_major_diameter0.184 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
turnlock_stud_shank_styleSTUD SHANK
material_accommodated_thickness0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
NSN5325-01-353-6058
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 128-0165-012 · 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
•
DRIVE TYPE: SOCKET
•
MATERIAL ACCOMMODATED THICKNESS: 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
EXTENSION LENGTH: 0.219 INCHES NOMINAL IN
•
DIAMETER: 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
SECURING DEVICE TYPE: WASHER
•
TURNLOCK STUD HEAD STYLE: FILLISTER
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
DRIVE TYPESOCKET
MATERIAL ACCOMMODATED THICKNESS0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
TURNLOCK STUD SHANK STYLESTUD SHANK
EXTENSION LENGTH0.219 INCHES NOMINAL IN
DIAMETER0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
SECURING DEVICE TYPEWASHER
TURNLOCK STUD HEAD STYLEFILLISTER
STUD SHANK MAJOR DIAMETER0.184 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN
SPECIAL FEATURES2 LEAD THD,0.112-40UNC-2B
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

No substitute or cross-reference records for this part.

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 128-0165-012?
128-0165-012 is a STUD,TURNLOCK FASTENER.
What is the NSN for 128-0165-012?
128-0165-012 is cataloged in the U.S. Government catalog under NSN 5325-01-353-6058. 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.