5305-01-421-3944

Find complete technical information, availability, and procurement data for: 5305-01-421-3944
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-421-3944

Item Name Code

41756

Assigment Date

11/07/1995 (30 years ago)

A tubular shaped item with a round or hexagon peripheral shape having two flat bearing surfaces perpendicular to the axis of the centrally located hole. It is designed to maintain a predetermined distance between assembled parts. The item may be with or without flange(s) of any peripheral shape. The overall length must exceed 25 percent of the outside diameter or distance across peripheral flats of the body. (when the length, outside diameter, and/or distance across peripheral flats are designed as a tolerance, the maximum dimension will be used to determine compliance). For items having other than a round or hexagon peripheral shape, see spacer, plate. Excludes:items with lubricating features, see bearing, sleeve and bushing, sleeve. See also bushing, tapered; spacer, ring; washer, flat; and washer, (as modified).

cross recess type 1 internal drive style, gimlet point (type a, ab or ba) nonmachine thread style, 0.750 inches nominal fastener length, oval countersunk head style, 0.255 inches minimum and 0.277 inches maximum head diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Fastener Length: 0.750 inches nominal
Head Style: oval countersunk
Head Diameter: 0.255 inches minimum and 0.277 inches maximum
Internal Drive Style: cross recess type 1
Nonmachine Thread Style: gimlet point (type a, ab or ba)
Countersink Angle: 98.0 degrees minimum and 100.0 degrees maximum
Nonmachine Nominal Thread Diameter: 0.190 inches
Material: steel overall
Surface Treatment: chromium overall

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
NAS384-6-12P	Tapping Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-01-421-3944?

The FSCG of the NSN 5305-01-421-3944 is 5305

Does the NSN 5305-01-421-3944 have a Schedule B code assigned?

Yes, the Schedule B code is 7318140000

Does NSN 5305-01-421-3944 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5305-01-421-3944 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-421-3944 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5305-01-421-3944 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Tue, Nov 7, 1995