5305-01-317-9627

Find complete technical information, availability, and procurement data for: 5305-01-317-9627
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-317-9627

Item Name Code

18257

Assigment Date

04/08/1990 (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.)

1.000 inches nominal thread length, hexagon head style, right-hand thread direction, 2a thread class, 1.460 inches minimum and 1.520 inches maximum fastener length

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: 1.000 inches nominal
Fastener Length: 1.460 inches minimum and 1.520 inches maximum
Head Style: hexagon
Head Height: 0.226 inches minimum and 0.268 inches maximum
Width Between Flats: 0.544 inches minimum and 0.562 inches maximum
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 16
Material: steel overall
Material Document And Classification: sae j429 gade 8 assn std single material response overall
Surface Treatment: zinc and chromate overall
Surface Treatment Document And Classification: astm b633 ty 2 cl fe/zn assn std single treatment response overall
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 1 type and 8 grade

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
3/8-16UNC-2AX1 1/2IN LG GR 8	Hexagon Head Cap Screw
M122RN6C2124GHNZE	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-317-9627?

The FSCG of the NSN 5305-01-317-9627 is 5305

Does the NSN 5305-01-317-9627 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-317-9627 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 5305-01-317-9627 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-317-9627 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 5305-01-317-9627 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Sun, Apr 8, 1990