MS51869-C23

View detailed technical data, stock status, and sourcing information for: MS51869-C23
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-242-6987

Item Name Code

41756

Assigment Date

10/16/1986 (39 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

0.202 inches minimum and 0.240 inches maximum head height, hexagon extended washer head style, 0.367 inches minimum and 0.375 inches maximum width between flats, 0.470 inches minimum and 0.500 inches maximum fastener length, 0.480 inches minimum and 0.520 inches maximum extended washer 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: 0.470 inches minimum and 0.500 inches maximum
Head Style: hexagon extended washer
Head Height: 0.202 inches minimum and 0.240 inches maximum
Width Between Flats: 0.367 inches minimum and 0.375 inches maximum
Extended Washer Diameter: 0.480 inches minimum and 0.520 inches maximum
Extended Washer Thickness: 0.030 inches minimum and 0.050 inches maximum
Internal Drive Style: w/o internal drive
Nonmachine Thread Style: blunt (sf) or blunt (type sw) or blunt (type tt)
Nonmachine Nominal Thread Diameter: 0.250 inches
Material: steel comp 410 overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Nondefinitive Spec/Std Data: sf type or sw type or tt type

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
MS51869-C23	Tapping Screw

FAQs

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

What is the FSCG of the NSN 5305-01-242-6987?

The FSCG of the NSN 5305-01-242-6987 is 5305

Does the NSN 5305-01-242-6987 have a Schedule B code assigned?

Yes, the Schedule B code is 7318140000

Does NSN 5305-01-242-6987 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 5305-01-242-6987 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-242-6987 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 5305-01-242-6987 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Thu, Oct 16, 1986