5305-01-437-4381

Find complete technical information, availability, and procurement data for: 5305-01-437-4381
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-437-4381

Item Name Code

06657

Assigment Date

10/12/1996 (29 years ago)

A clamp designed to hold an item in position, alignment or in close proximity by rigidly gripping the projecting rim, ridge, collar or edge of the item. A lockwasher, bolt, screw or the like may be a part of the item of supply.

right-hand thread direction, 0.407 inches minimum and 0.438 inches maximum thread length, 0.407 inches minimum and 0.438 inches maximum fastener length, 3a thread class, flat countersunk undercut 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: 0.407 inches minimum and 0.438 inches maximum
Fastener Length: 0.407 inches minimum and 0.438 inches maximum
Head Style: flat countersunk undercut
Head Diameter: 0.371 inches minimum and 0.385 inches maximum
Head Height: 0.080 inches nominal
Locking Feature: patch
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: steel
Screw Surface Treatment: chromate and cadmium
Screw Surface Treatment Document And Classification: qq-p-416,ty2cl2 fed spec single treatment response
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas1189 professional/industrial association standard

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
NAS1189-3P7B	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-437-4381?

The FSCG of the NSN 5305-01-437-4381 is 5305

Does the NSN 5305-01-437-4381 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-437-4381 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 5305-01-437-4381 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-437-4381 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 5305-01-437-4381 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Sat, Oct 12, 1996