4B1237

View detailed technical data, stock status, and sourcing information for: 4B1237
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-290-2697

Item Name Code

06657

Assigment Date

01/01/1961 (65 years ago)

right-hand thread direction, 0.500 inches nominal fastener length, 2a thread class, round head style, 0.500 inches minimum thread length

Product Characteristics

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

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.500 inches minimum
Fastener Length: 0.500 inches nominal
Head Style: round
Head Diameter: 0.334 inches minimum and 0.359 inches maximum
Head Height: 0.123 inches minimum and 0.137 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 60000 pounds per square inch
Screw Material: steel
Screw Material Document And Classification: qq-s-634 fed spec single material response or qq-s-637 fed spec single material response or 66 fed std single material response
Thread Series Designator: unf
Nondefinitive Spec/Std Data: 1 type and 1s style

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-010-0764	No Name Available	01/26/1966
5305-00-121-8409	No Name Available	03/10/1969

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:

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0900558	Machine Screw
0900558-8	Machine Screw
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190840	Machine Screw
36822S	Machine Screw
409202	Machine Screw
4B1237	Machine Screw
55X197	Machine Screw
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650224	Machine Screw
80157	Machine Screw
900558	Machine Screw
X2-49	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-290-2697?

The FSCG of the NSN 5305-00-290-2697 is 5305

Does the NSN 5305-00-290-2697 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-290-2697 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 5305-00-290-2697 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-290-2697 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 5305-00-290-2697 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961