12S1-20-1AD — STUD ASSEMBLY,TURNLOCK FASTENER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

12S1-20-1AD: STUD ASSEMBLY,TURNLOCK FASTENER.

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.294 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN, material: STEEL COMP 302 STUD, drive_type: SLOTTED, stud_diameter: 0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN, surface_treatment: OXIDE FILM OVERALL, stud_assembly_style: STUD ASSEMBLY. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-173-3776, 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

12S1-20-1AD

NSN: 5325-01-173-3776
FSC: 5325 — Fastening Devices
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)

SPECIFICATIONS

diameter	0.294 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
material	STEEL COMP 302 STUD
drive_type	SLOTTED
stud_diameter	0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
surface_treatment	OXIDE FILM OVERALL
stud_assembly_style	STUD ASSEMBLY
securing_device_type	WASHER
eyelet_outside_diameter	0.344 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN
turnlock_stud_head_style	FILLISTER
material_accommodated_thickness	0.260 INCHES MINIMUM AND 0.274 INCHES MAXIMUM IN
material_document_and_classification	QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE EYELET
surface_treatment_document_and_classification	MIL-C-13924,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN	5325-01-173-3776

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

EYELET OUTSIDE DIAMETER: 0.344 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN

•

DRIVE TYPE: SLOTTED

•

MATERIAL ACCOMMODATED THICKNESS: 0.260 INCHES MINIMUM AND 0.274 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE EYELET

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-C-13924,CL 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
EYELET OUTSIDE DIAMETER	0.344 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN
DRIVE TYPE	SLOTTED
MATERIAL ACCOMMODATED THICKNESS	0.260 INCHES MINIMUM AND 0.274 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-766 FED SPEC SINGLE MATERIAL RESPONSE EYELET
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE EJECTOR SPRING
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE STUD
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-W-423 FED SPEC SINGLE MATERIAL RESPONSE OR AISI COMP 321 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-W-46078 MIL SPEC SINGLE MATERIAL RESPONSE PIN
DIAMETER	0.294 INCHES MINIMUM AND 0.306 INCHES MAXIMUM IN
SECURING DEVICE TYPE	WASHER

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

9M836C20Reference document

Same NSN cross-reference

Reference document — Vendor item drawing reference

9M836-20Same 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 12S1-20-1AD?

12S1-20-1AD is a STUD ASSEMBLY,TURNLOCK FASTENER.

What parts can replace 12S1-20-1AD?

There are 2 known substitutes for 12S1-20-1AD: 9M836C20, 9M836-20. Substitute compatibility should be verified for your specific system.

What is the NSN for 12S1-20-1AD?

12S1-20-1AD is cataloged in the U.S. Government catalog under NSN 5325-01-173-3776. This indicates validated use in U.S. government and defense supply chains.

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