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M24-0020

View detailed technical data, stock status, and sourcing information for: M24-0020

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M24-0020
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-725-3524
Item Name Code
06672
Assigment Date
01/01/1961 (65 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

3a thread class, headless (setscrew) head style, right-hand thread direction, 1.000 inches maximum thread length, 1.000 inches nominal fastener 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
3a
Thread Direction
right-hand
Thread Length
1.000 inches maximum
Fastener Length
1.000 inches nominal
Head Style
headless (setscrew)
Point Style
cup
Internal Drive Style
hexagon
Nominal Thread Diameter
0.312 inches
Width Across Flats
0.156 inches nominal
Thread Quantity Per Inch
24
Hardness Rating
45.0 rockwell c minimum and 53.0 rockwell c maximum overall
Material
steel comp 4037 or steel comp 4137 or steel comp 4140 or steel comp 8630 or steel comp 8740 overall
Material Document And Classification
66 fed std all material responses overall
Surface Treatment
cadmium and chromate overall
Surface Treatment Document And Classification
qq-p-416,type 2,class 3 fed spec all treatment responses overall
Thread Series Designator
unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5305-00-253-4791 No Name Available 09/01/2023
5305-01-083-1598 No Name Available 07/01/1997
5305-01-083-2293 No Name Available 09/01/1997

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
312-13160 Setscrew
6300790-85 Setscrew
642AS0698 Setscrew
M24-0020 Setscrew
MS51964-85 Setscrew

FAQs

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

What is the FSCG of the NSN 5305-00-725-3524?
The FSCG of the NSN 5305-00-725-3524 is 5305
Does the NSN 5305-00-725-3524 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-725-3524 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 5305-00-725-3524 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-725-3524 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 5305-00-725-3524 was assigned to the Federal Catalog?
It was assigned 65 years ago, on Sun, Jan 1, 1961

Professional Distribution

Certified to meet the strict requirements of defense, aerospace, and hazardous materials distribution.

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  • AS9120 Quality Standards
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