5305-01-312-7659

Find complete technical information, availability, and procurement data for: 5305-01-312-7659
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-312-7659

Item Name Code

41756

Assigment Date

12/22/1989 (36 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

0.469 inches minimum and 0.500 inches maximum fastener length, 0.287 inches minimum and 0.309 inches maximum head diameter, 0.120 inches maximum head height, round head style, cross recess type 1 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: 0.469 inches minimum and 0.500 inches maximum
Head Style: round
Head Diameter: 0.287 inches minimum and 0.309 inches maximum
Head Height: 0.120 inches maximum
Internal Drive Style: cross recess type 1
Features Provided: casehardened
Nonmachine Thread Style: dog type (type b or c)
Nonmachine Nominal Thread Diameter: 0.164 inches
Material: steel comp 410 overall
Material Document And Classification: 66 fed std single material response overall
Departure From Cited Designator: as modified by drive styl3

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
AN530C8R8	Tapping Screw

FAQs

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

What is the FSCG of the NSN 5305-01-312-7659?

The FSCG of the NSN 5305-01-312-7659 is 5305

Does the NSN 5305-01-312-7659 have a Schedule B code assigned?

Yes, the Schedule B code is 7318140000

Does NSN 5305-01-312-7659 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 5305-01-312-7659 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-312-7659 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 5305-01-312-7659 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Fri, Dec 22, 1989