Screw, Cap, Hexagon Head5305-01-643-8949

NSN 5305-01-643-8949 · NIIN 016438949 · Part number N9728

C E Niehoff & Co · FSC 5305 — Screws · FSG 53 — Hardware and Abrasives · CAGE 76761

Government record, cited

NSN 5305-01-643-8949 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-643-8949. Manufacturer of record part number: N9728.

Also searched as 5305-01-643-8949 · 5305016438949 · NIIN 016438949 · 01-643-8949 · FSC 5305 Screws · CAGE 76761 · N9728

Nearby stock numbers ← 5305-01-643-8948 Screw, Cap, Socket Head · 5305-01-643-8965 Screw, Self-Drilling →

5305-01-643-8949 — Screws

Features

Screw,cap,hexagon Head — FSC 5305
Head Height: 0.310 INCHES NOMINAL IN
Fastener Length: 0.750 INCHES NOMINAL IN
Thread Length: 0.750 INCHES NOMINAL IN
Nominal Thread Diameter: 0.500 INCHES IN
Head Style: HEXAGON
Thread Direction: RIGHT-HAND
Width Between Flats: 0.740 INCHES NOMINAL IN

Identification

NSN: 5305-01-643-8949
NIIN: 016438949
FSC: 5305 — Screws
FSG: 53 — Hardware and Abrasives
Primary part number: N9728
Manufacturer: C E Niehoff & Co

General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-643-8949, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is C E Niehoff & Co. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	5305-01-643-8949
Primary Part Number	N9728
Item Name	Screw,cap,hexagon Head
FSC / FSG	5305 / 53 — Screws
Manufacturer	C E Niehoff & Co
Status	ACTIVE
Head Height	0.310 INCHES NOMINAL IN
Fastener Length	0.750 INCHES NOMINAL IN
Thread Length	0.750 INCHES NOMINAL IN
Nominal Thread Diameter	0.500 INCHES IN
Head Style	HEXAGON
Thread Direction	RIGHT-HAND
Width Between Flats	0.740 INCHES NOMINAL IN
Thread Class	2A A
Thread Quantity Per Inch	13
Thread Series Designator	UNIFIED NATIONAL COARSE (UNC)

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

Part Number	Manufacturer
N9728 PRIMARY	C E Niehoff & Co (USA)

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 5305-01-643-8949?

NSN 5305-01-643-8949 is a Screw,cap,hexagon Head, manufactured by C E Niehoff & Co, classified under FSC 5305, Screws. Status: active.

What part numbers are listed for NSN 5305-01-643-8949?

NSN 5305-01-643-8949 has 1 manufacturer part number on file: N9728 (C E Niehoff & Co).

What are the specifications of N9728?

Key specifications for N9728: Head Height: 0.310 INCHES NOMINAL IN; Fastener Length: 0.750 INCHES NOMINAL IN; Thread Length: 0.750 INCHES NOMINAL IN; Nominal Thread Diameter: 0.500 INCHES IN. 10 specifications are documented in the U.S. Government catalog.

Is NSN 5305-01-643-8949 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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