5305-01-439-1855

Find complete technical information, availability, and procurement data for: 5305-01-439-1855
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-439-1855

Item Name Code

18257

Assigment Date

12/02/1996 (29 years ago)

A case specifically designed for electronic communications equipment. It may be designed to protect against shock and vibration.

2a thread class, right-hand thread direction, 0.345 inches minimum and 0.350 inches maximum fastener length, hexagon head style, 0.350 inches nominal thread 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: 0.350 inches nominal
Fastener Length: 0.345 inches minimum and 0.350 inches maximum
Head Style: hexagon
Head Height: 0.150 inches minimum and 0.163 inches maximum
Width Between Flats: 0.428 inches minimum and 0.438 inches maximum
Locking Feature: patch or strip threads
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Part Name Assigned By Controlling Agency: navy special project
Material: steel overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416, ty2 cl3 fed spec 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
1698AS145-7	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-439-1855?

The FSCG of the NSN 5305-01-439-1855 is 5305

Does the NSN 5305-01-439-1855 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-439-1855 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 5305-01-439-1855 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-439-1855 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 5305-01-439-1855 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Mon, Dec 2, 1996