HT4057-3-22A

View detailed technical data, stock status, and sourcing information for: HT4057-3-22A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-578-3983

Item Name Code

29294

Assigment Date

10/05/2009 (16 years ago)

A rigid item of various shapes specifically designed to cover a lateral ingress or egress opening of a vehicle cab. The item may be attached by means of hinges or similar devices and closed with a latching device. Necessary hardware and/or fastening devices as well as the door panel are included. It may include one or several integrated or slip-on observation windows. Excludes:door, hatch, vehicle and door, metal, swinging.

0.381 inches minimum and 0.431 inches maximum thread length, right-hand thread direction, 3a thread class, 1.829 inches minimum and 1.859 inches maximum fastener length, flat countersunk head style

Product Characteristics

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

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.381 inches minimum and 0.431 inches maximum
Fastener Length: 1.829 inches minimum and 1.859 inches maximum
Head Style: flat countersunk
Head Diameter: 0.338 inches minimum and 0.381 inches maximum
Grip Diameter: 0.1885 inches minimum and 0.1895 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.190 inches
Grip Length: 1.375 inches nominal
Thread Quantity Per Inch: 32
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Special Features: lube cetyl alcohol
Material: iron alloy 661 overall
Thread Series Designator: unjf

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
11935-3L22	Close Tolerance Screw
HT4057-3-22A	Close Tolerance Screw
ST3M733-3L22	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-578-3983?

The FSCG of the NSN 5305-01-578-3983 is 5305

Does the NSN 5305-01-578-3983 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-578-3983 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 5305-01-578-3983 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-578-3983 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 5305-01-578-3983 was assigned to the Federal Catalog?

It was assigned 16 years ago, on Mon, Oct 5, 2009