5305-01-392-0743

Find complete technical information, availability, and procurement data for: 5305-01-392-0743
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-392-0743

Item Name Code

18257

Assigment Date

06/23/1994 (32 years ago)

A flat metal or plastic item of various peripheral shapes having a solid (not laminated) cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole having a solid rectangular cross-section use disk, solid, plain. For round or hexagonal items with only one hole centrally located and with the length (thickness) exceeding 25 percent of the outside diameter or distance across peripheral flats, see spacer, sleeve. The thickness between the two parallel bearing surfaces must be 0.006 inch, (0.152 mm) or more for items less than 1/4 inch (6.35 mm) across the peripheral diameter, or smallest overall outside dimension, or must be 0.016 inch (0.406 mm) or more for items 1/4 inch (6.35 mm) or greater across the peripheral diameter or smallest overall outside dimension. For items with a thickness less than those indicated above, see shim. For items with one hole centrally located conforming to the above dimensional criteria use washer, flat or spacer, ring as applicable. When thickness and/or outside_diameter_or_smallest_overall_outside_dimension_is_designated_as_a_tolerance/dimension_the_maximum_dimension_will_be_used_to_determine_compliance._excludes:gasket;_insulator_(as_modified)_and_mounting_pad,_electrical-electronic_component.____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

hexagon head style, 50.0 millimeters nominal fastener length, right-hand thread direction, 46.0 millimeters minimum and 50.0 millimeters maximum thread length, 12.12 millimeters minimum and 12.88 millimeters maximum head height

Product Characteristics

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

Thread Direction: right-hand
Thread Length: 46.0 millimeters minimum and 50.0 millimeters maximum
Fastener Length: 50.0 millimeters nominal
Head Style: hexagon
Head Height: 12.12 millimeters minimum and 12.88 millimeters maximum
Width Between Flats: 29.16 millimeters minimum and 30.00 millimeters maximum
Nominal Thread Diameter: 20.0 millimeters
Thread Pitch In Millimeters: 2.5
External Thread Tolerance Class: 6g
Material: steel property class 10.9 overall
Surface Treatment: zinc and chromate overall
Surface Treatment Document And Classification: qq-z-325 ty2 cl3 fed spec single treatment response overall
Thread Series Designator: m

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
12419954-179	Hexagon Head Cap Screw
B18231B20050N	Hexagon Head Cap Screw
DIN933M20X2.5X50-10.9A3D	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-392-0743?

The FSCG of the NSN 5305-01-392-0743 is 5305

Does the NSN 5305-01-392-0743 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-392-0743 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 5305-01-392-0743 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-392-0743 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 5305-01-392-0743 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Thu, Jun 23, 1994