5305-01-491-1451

Find complete technical information, availability, and procurement data for: 5305-01-491-1451
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-491-1451

Item Name Code

18257

Assigment Date

10/15/2001 (24 years ago)

A switch which is actuated by changes in pressure of any gas or liquid or by changes in a vacuum acting upon its sensing element. Excludes:baroswitch; switch,pressure-thermostatic; and switch,sensitive.

2a thread class, hexagon head style, 2.750 inches nominal fastener length, right-hand thread direction, 1.750 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: 1.750 inches nominal
Fastener Length: 2.750 inches nominal
Head Style: hexagon
Head Height: 0.476 inches minimum and 0.524 inches maximum
Width Between Flats: 1.088 inches minimum and 1.125 inches maximum
Nominal Thread Diameter: 0.750 inches
Thread Quantity Per Inch: 10
Material: nickel alloy 400 overall
Material Document And Classification: qq-n-281, class a fed spec single material 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
0.75010UNC2A2.750T1G400SEA	Hexagon Head Cap Screw
M1222RN12C244NANN	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-491-1451?

The FSCG of the NSN 5305-01-491-1451 is 5305

Does the NSN 5305-01-491-1451 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5305-01-491-1451 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 5305-01-491-1451 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-491-1451 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 5305-01-491-1451 was assigned to the Federal Catalog?

It was assigned 24 years ago, on Mon, Oct 15, 2001