5305-01-355-7609

Find complete technical information, availability, and procurement data for: 5305-01-355-7609
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-355-7609

Item Name Code

18257

Assigment Date

03/23/1992 (34 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.)

0.969 inches minimum and 1.000 inches maximum fastener length, 0.686 inches nominal thread length, 2a thread class, hexagon head style, right-hand thread direction

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: 0.686 inches nominal
Fastener Length: 0.969 inches minimum and 1.000 inches maximum
Head Style: hexagon
Head Height: 0.195 inches minimum and 0.211 inches maximum
Width Between Flats: 0.489 inches minimum and 0.500 inches maximum
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 18
Material: steel overall
Material Document And Classification: sae j429,gr 5 assn std single material response overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: astm b633-78,ty 2 assn std single treatment response overall
Thread Series Designator: unc

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
MS51491-012	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-355-7609?

The FSCG of the NSN 5305-01-355-7609 is 5305

Does the NSN 5305-01-355-7609 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-355-7609 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 5305-01-355-7609 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-355-7609 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 5305-01-355-7609 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Mon, Mar 23, 1992