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012-0108-020 — STUD ASSEMBLY,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

012-0108-020: STUD ASSEMBLY,TURNLOCK FASTENER.

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN, material: STEEL COMP 1118 OVERALL, drive_type: SLOTTED, eyelet_length: 0.253 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN, stud_diameter: 0.212 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-050-5063, 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
012-0108-020
NSN: 5325-01-050-5063
FSC: 5325 — Fastening Devices
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
diameter0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
materialSTEEL COMP 1118 OVERALL
drive_typeSLOTTED
eyelet_length0.253 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
stud_diameter0.212 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
stud_assembly_styleSTUD ASSEMBLY
eyelet_outside_diameter0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
turnlock_stud_head_styleFILLISTER
material_accommodated_thickness0.110 INCHES NOMINAL IN
material_document_and_classificationFED STD 66 FED STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationQQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
NSN5325-01-050-5063
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 012-0108-020 · 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,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
EYELET OUTSIDE DIAMETER: 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
•
DRIVE TYPE: SLOTTED
•
MATERIAL ACCOMMODATED THICKNESS: 0.110 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
DIAMETER: 0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
•
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD: 0.420 INCHES NOMINAL IN
•
TURNLOCK STUD HEAD STYLE: FILLISTER
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
EYELET OUTSIDE DIAMETER0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
DRIVE TYPESLOTTED
MATERIAL ACCOMMODATED THICKNESS0.110 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66 FED STD ALL MATERIAL RESPONSES OVERALL
DIAMETER0.373 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD0.420 INCHES NOMINAL IN
TURNLOCK STUD HEAD STYLEFILLISTER
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 1118 OVERALL
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
21187-00220Reference document
Same NSN cross-reference
Reference document — Secondary reference
PVS 3 1/2-42Reference document
Same NSN cross-reference
Reference document — Secondary reference
PV535-42Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 012-0108-020?
012-0108-020 is a STUD ASSEMBLY,TURNLOCK FASTENER.
What parts can replace 012-0108-020?
There are 3 known substitutes for 012-0108-020: 21187-00220, PVS 3 1/2-42, PV535-42. Substitute compatibility should be verified for your specific system.
What is the NSN for 012-0108-020?
012-0108-020 is cataloged in the U.S. Government catalog under NSN 5325-01-050-5063. 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.