90251A190

View detailed technical data, stock status, and sourcing information for: 90251A190
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-563-0596

Item Name Code

06672

Assigment Date

04/30/2008 (18 years ago)

A device designed to facilitate the adjustment of drive belt or roller chain tension on belt or chain driven accessories through a hydraulic or spring actuated mechanism. It consists of an adjusting arm, idler pulley or sprocket wheel and other structural parts.

right-hand thread direction, headless (setscrew) head style, 3a thread class, patch threads locking feature, 0.250 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: 3a
Thread Direction: right-hand
Fastener Length: 0.250 inches nominal
Head Style: headless (setscrew)
Locking Feature: patch threads
Point Style: cup
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.164 inches
Width Across Flats: 0.078 inches nominal
Thread Quantity Per Inch: 32
Material: steel comp 302 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
90251A190	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-01-563-0596?

The FSCG of the NSN 5305-01-563-0596 is 5305

Does the NSN 5305-01-563-0596 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-563-0596 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 5305-01-563-0596 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-563-0596 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 5305-01-563-0596 was assigned to the Federal Catalog?

It was assigned 18 years ago, on Wed, Apr 30, 2008