5305-00-421-9156

Find complete technical information, availability, and procurement data for: 5305-00-421-9156
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-421-9156

Item Name Code

22846

Assigment Date

12/23/1970 (55 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.)

0.215 inches nominal fastener length, hexagon head style, right-hand thread direction, 0.125 inches maximum thread length, 2a thread class

Product Characteristics

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

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.125 inches maximum
Fastener Length: 0.215 inches nominal
Head Style: hexagon
Head Height: 0.094 inches nominal
Width Between Flats: 0.3105 inches minimum and 0.3125 inches maximum
Shoulder Diameter: 0.215 inches minimum and 0.217 inches maximum first shoulder
Shoulder Length: 0.043 inches minimum and 0.047 inches maximum first shoulder
Internal Drive Style: w/o internal drive
Nominal Thread Diameter: 0.138 inches
Features Provided: casehardened
Thread Quantity Per Inch: 40
Shoulder Shape: round first shoulder
Special Features: axis of thd end eccentric to axis of shoulder and head by 0.037 in.
Material: steel overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: 50-23610 mfr ref single treatment response overall
Thread Series Designator: unf

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
1020557	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-00-421-9156?

The FSCG of the NSN 5305-00-421-9156 is 5305

Does the NSN 5305-00-421-9156 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-421-9156 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 5305-00-421-9156 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-421-9156 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 5305-00-421-9156 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, Dec 23, 1970