171121

View detailed technical data, stock status, and sourcing information for: 171121
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 171121 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-017-1121

Item Name Code

41756

Assigment Date

01/01/1963 (63 years ago)

A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes:screw, assembled washer.

hexagon head style, 0.625 inches nominal fastener length, 0.270 inches minimum and 0.295 inches maximum head height, w/o internal drive internal drive style, 0.552 inches minimum and 0.562 inches maximum width between flats

Product Characteristics

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

Fastener Length: 0.625 inches nominal
Head Style: hexagon
Head Height: 0.270 inches minimum and 0.295 inches maximum
Width Between Flats: 0.552 inches minimum and 0.562 inches maximum
Internal Drive Style: w/o internal drive
Nonmachine Thread Style: dog type (type b or c)
Nonmachine Nominal Thread Diameter: 0.375 inches
Material: steel overall
Surface Treatment: cadmium or zinc overall
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec 1st treatment response or qq-z-325,ty 1,cl 3 fed spec 2nd treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-619-1991	No Name Available	06/14/2023

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
171121	Tapping Screw

FAQs

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

What is the FSCG of the NSN 5305-00-017-1121?

The FSCG of the NSN 5305-00-017-1121 is 5305

Does the NSN 5305-00-017-1121 have a Schedule B code assigned?

Yes, the Schedule B code is 7318140000

Does NSN 5305-00-017-1121 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 5305-00-017-1121 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-017-1121 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 5305-00-017-1121 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963