5305-01-612-1558

Find complete technical information, availability, and procurement data for: 5305-01-612-1558
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-612-1558

Item Name Code

18257

Assigment Date

10/03/2012 (13 years ago)

An electrical fitting with electrical contacts, constructed to be affixed to the end of a cable, conduit, coaxial line, cord or wiring for convenience in joining with other electrical connector(s) or printed wiring board and is not designed to be mounted on a bulkhead, chasses, panel, printed wiring board, or the like. Excludes:jack, telephone; jack, tip; plug, telephone; plug tip; insert, electrical connector; connector body (as modified); and socket, plug-in, electronic components. See also lead assembly, electrical; wiring harness (as modified); and cable assembly (as modified). For items without inserts, see shell, electrical connector.

2a thread class, 0.875 inches nominal thread length, dished hexagon head style, right-hand thread direction, 1.00 inches nominal 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: 0.875 inches nominal
Fastener Length: 1.00 inches nominal
Head Style: dished hexagon
Head Height: 0.150 inches minimum and 0.163 inches maximum
Width Between Flats: 0.428 inches minimum and 0.438 inches maximum
End Item Identification: a/s48m-4 ums
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Part Name Assigned By Controlling Agency: screw,cap,hexagon head
Material: steel overall
Material Document And Classification: sae j 429 grade 5 assn std single material response overall
Surface Treatment: zinc overall
Surface Treatment Document And Classification: stm f 1941, zinc coating, fe/zn, type 3a 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
AES01C250A00WA2D71	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-612-1558?

The FSCG of the NSN 5305-01-612-1558 is 5305

Does the NSN 5305-01-612-1558 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-612-1558 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 5305-01-612-1558 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-612-1558 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 5305-01-612-1558 was assigned to the Federal Catalog?

It was assigned 13 years ago, on Wed, Oct 3, 2012