5305-01-178-7398

Find complete technical information, availability, and procurement data for: 5305-01-178-7398
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-178-7398

Item Name Code

41756

Assigment Date

05/09/1984 (42 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.

hexagon head style, 0.105 inches minimum and 0.120 inches maximum head height, 0.970 inches minimum and 1.030 inches maximum fastener length, 0.305 inches minimum and 0.312 inches maximum width between flats, slot internal drive style

Product Characteristics

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

Fastener Length: 0.970 inches minimum and 1.030 inches maximum
Head Style: hexagon
Head Height: 0.105 inches minimum and 0.120 inches maximum
Width Between Flats: 0.305 inches minimum and 0.312 inches maximum
Internal Drive Style: slot
Features Provided: casehardened
Nonmachine Thread Style: gimlet point (type a, ab or ba)
Nonmachine Nominal Thread Diameter: 0.190 inches
Material: steel comp 1016 or steel comp 1018 or steel comp 1019 or steel comp 1021 or steel comp 1022 or steel comp 1524 overall
Material Document And Classification: aisi assn 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 single treatment response overall
Nondefinitive Spec/Std Data: ab 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
MS51850-68	Tapping Screw

FAQs

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

What is the FSCG of the NSN 5305-01-178-7398?

The FSCG of the NSN 5305-01-178-7398 is 5305

Does the NSN 5305-01-178-7398 have a Schedule B code assigned?

Yes, the Schedule B code is 7318140000

Does NSN 5305-01-178-7398 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 5305-01-178-7398 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-178-7398 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 5305-01-178-7398 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Wed, May 9, 1984