40S56-49A — STUD ASSEMBLY,TURNLOCK FASTENER

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

40S56-49A: STUD ASSEMBLY,TURNLOCK FASTENER.

STUD ASSEMBLY,TURNLOCK FASTENER. Key specifications include diameter: 0.377 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN, material: COPPER ALLOY 172 OVERALL, drive_type: SLOTTED, eyelet_length: 0.257 INCHES NOMINAL IN, stud_assembly_style: STUD ASSEMBLY, eyelet_outside_diameter: 0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-866-4202, 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

40S56-49A

NSN: 5325-00-866-4202
FSC: 5325 — Fastening Devices
CAGE: 71286 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV CAMLOC PRODUCTS (USA)

SPECIFICATIONS

diameter	0.377 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
material	COPPER ALLOY 172 OVERALL
drive_type	SLOTTED
eyelet_length	0.257 INCHES NOMINAL IN
stud_assembly_style	STUD ASSEMBLY
eyelet_outside_diameter	0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
turnlock_stud_head_style	FLAT COUNTERSUNK
material_accommodated_thickness	1.491 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN
material_document_and_classification	QQ-C-530 ALLOY CA173 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
distance_from_engaging_member_to_largest_bearing_surface_of_head	1.863 INCHES MINIMUM AND 1.873 INCHES MAXIMUM IN
NSN	5325-00-866-4202

COMPONENT DIAGRAM

KEY FEATURES

•

EYELET OUTSIDE DIAMETER: 0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN

•

DRIVE TYPE: SLOTTED

•

MATERIAL ACCOMMODATED THICKNESS: 1.491 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-530 ALLOY CA173 FED SPEC SINGLE MATERIAL RESPONSE OVERALL

•

DIAMETER: 0.377 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN

•

DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD: 1.863 INCHES MINIMUM AND 1.873 INCHES MAXIMUM IN

•

TURNLOCK STUD HEAD STYLE: FLAT COUNTERSUNK

•

MATERIAL: COPPER ALLOY 172 OVERALL

TECHNICAL CHARACTERISTICS

EYELET OUTSIDE DIAMETER	0.341 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
DRIVE TYPE	SLOTTED
MATERIAL ACCOMMODATED THICKNESS	1.491 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	QQ-C-530 ALLOY CA173 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
DIAMETER	0.377 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
DISTANCE FROM ENGAGING MEMBER TO LARGEST BEARING SURFACE OF HEAD	1.863 INCHES MINIMUM AND 1.873 INCHES MAXIMUM IN
TURNLOCK STUD HEAD STYLE	FLAT COUNTERSUNK
MATERIAL	COPPER ALLOY 172 OVERALL
STUD ASSEMBLY STYLE	STUD ASSEMBLY
EYELET LENGTH	0.257 INCHES NOMINAL IN

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

10105650Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 40S56-49A?

40S56-49A is a STUD ASSEMBLY,TURNLOCK FASTENER.

What parts can replace 40S56-49A?

There is 1 known substitute for 40S56-49A: 10105650. Substitute compatibility should be verified for your specific system.

What is the NSN for 40S56-49A?

40S56-49A is cataloged in the U.S. Government catalog under NSN 5325-00-866-4202. This indicates validated use in U.S. government and defense supply chains.

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