Screw, Cap, Socket Head5305-01-668-6841

NSN 5305-01-668-6841 · NIIN 016686841

FSC 5305 — Screws · FSG 53 — Hardware and Abrasives

Government record, cited

Also searched as 5305-01-668-6841 · 5305016686841 · NIIN 016686841 · 01-668-6841 · FSC 5305 Screws

Nearby stock numbers ← 5305-01-668-6837 Screw, Lead · 5305-01-668-6852 Screw, Cap, Socket Head →

5305-01-668-6841 — Screws

Features

Screw,cap,socket Head — FSC 5305
Head Inside Diameter: 10.0 MILLIMETERS NOMINAL MM
Fastener Length: 12.0 MILLIMETERS NOMINAL MM
Thread Pitch in Millimeters: 1.75
Thread Length: 36.0 MILLIMETERS NOMINAL MM
Head Style: HEXAGON
Head Length: 12.0 MILLIMETERS NOMINAL MM
Bottom Countersink Diameter: 13.7 MILLIMETERS NOMINAL MM

Identification

NSN: 5305-01-668-6841
NIIN: 016686841
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives

General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-668-6841, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5305-01-668-6841
Item Name	Screw,cap,socket Head
FSC / FSG	5305 / 53 — Screws
Status	ACTIVE
Head Inside Diameter	10.0 MILLIMETERS NOMINAL MM
Fastener Length	12.0 MILLIMETERS NOMINAL MM
Thread Pitch in Millimeters	1.75
Thread Length	36.0 MILLIMETERS NOMINAL MM
Head Style	HEXAGON
Head Length	12.0 MILLIMETERS NOMINAL MM
Bottom Countersink Diameter	13.7 MILLIMETERS NOMINAL MM
Minimum Tensile Strength	1300 NEWTONS PER SQUARE MILLIMETER
Internal Drive Style	HEXAGON
Thread Class	4
Material	STEEL OVERALL
Thread Series Designator	M
Head Diameter	18.0 MILLIMETERS NOMINAL MM

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
BS4168 M12X1.75PX45UH	3/9 Design control — primary reference Unbrako, Llc

No interchangeability data on file.

Other items in FSC 5305 — Screws

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5305-00-001-5016

5305-00-001-5016 · Item name not on file

5305-00-001-9160

5305-00-001-9160 · Item name not on file

5305-00-001-9629

SCREW,ADJUSTING CLEVIS

5305-00-001-9742

5305-00-001-9742 · Item name not on file

5305-00-001-9768

SCREW,CAP,SOCKET HEAD

5305-00-003-4306

SCREW,MACHINE

5305-00-003-6694

5305-00-003-6694 · Item name not on file

5305-00-003-6753

5305-00-003-6753 · Item name not on file

Frequently Asked Questions

What is NSN 5305-01-668-6841?

NSN 5305-01-668-6841 is a Screw,cap,socket Head, classified under FSC 5305, Screws. Status: active.

What are the specifications of 5305-01-668-6841?

Key specifications for 5305-01-668-6841: Head Inside Diameter: 10.0 MILLIMETERS NOMINAL MM; Fastener Length: 12.0 MILLIMETERS NOMINAL MM; Thread Pitch in Millimeters: 1.75; Thread Length: 36.0 MILLIMETERS NOMINAL MM. 13 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-668-6841 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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