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3M1055A5A10 — STUD,TURNLOCK FASTENER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

3M1055A5A10: STUD,TURNLOCK FASTENER.

The STUD,TURNLOCK FASTENER is a the manufacturer industrial component. Key specifications include diameter: 0.394 INCHES MINIMUM IN, material: STEEL OVERALL, drive_type: SOCKET, grip_length: 0.977 INCHES NOMINAL IN, extension_length: 0.060 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-284-4803, 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
3M1055A5A10
NSN: 5325-01-284-4803
FSC: 5325 — Fastening Devices
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
diameter0.394 INCHES MINIMUM IN
materialSTEEL OVERALL
drive_typeSOCKET
grip_length0.977 INCHES NOMINAL IN
extension_length0.060 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
turnlock_stud_head_styleFLAT COUNTERSUNK
stud_shank_major_diameter0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
turnlock_stud_shank_styleSTUD SHANK
material_accommodated_thickness0.501 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
material_document_and_classification23-107,CAGEC 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL
stud_thread_size_and_series/type_designator0.190-32 UNIFIED NATIONAL JOINT FINE (UNJF)
NSN5325-01-284-4803
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3M1055A5A10 · 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: SOCKET
•
MATERIAL ACCOMMODATED THICKNESS: 0.501 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
TURNLOCK STUD SHANK STYLE: STUD SHANK
•
EXTENSION LENGTH: 0.060 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 23-107,CAGEC 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.394 INCHES MINIMUM IN
•
TURNLOCK STUD HEAD STYLE: FLAT COUNTERSUNK
•
STUD SHANK MAJOR DIAMETER: 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DRIVE TYPESOCKET
MATERIAL ACCOMMODATED THICKNESS0.501 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
TURNLOCK STUD SHANK STYLESTUD SHANK
EXTENSION LENGTH0.060 INCHES MINIMUM AND 0.066 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION23-107,CAGEC 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.394 INCHES MINIMUM IN
TURNLOCK STUD HEAD STYLEFLAT COUNTERSUNK
STUD SHANK MAJOR DIAMETER0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL 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 1
3223-5-10Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3M1055A5A10?
3M1055A5A10 is a STUD,TURNLOCK FASTENER.
What parts can replace 3M1055A5A10?
There is 1 known substitute for 3M1055A5A10: 3223-5-10. Substitute compatibility should be verified for your specific system.
What is the NSN for 3M1055A5A10?
3M1055A5A10 is cataloged in the U.S. Government catalog under NSN 5325-01-284-4803. 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.