5305-00-321-4659

Find complete technical information, availability, and procurement data for: 5305-00-321-4659
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-321-4659

Item Name Code

01852

Assigment Date

11/18/1973 (52 years ago)

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes:washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

2a thread class, pan head style, right-hand thread direction, 0.750 inches nominal fastener length, 0.281 inches minimum 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: 0.281 inches minimum
Fastener Length: 0.750 inches nominal
Head Style: pan
Head Diameter: 0.256 inches minimum and 0.270 inches maximum
Head Height: 0.087 inches minimum and 0.097 inches maximum
First Diameter From Head: 0.089 inches minimum and 0.099 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.469 inches nominal
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Externally Relieved Body Diameter Quantity: 1
Material: steel corrosion resisting overall
Material Document And Classification: qq-s-763,300 series fed spec single material response or 66,300 series fed std single material response or comp 16-18 or 18-8 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 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
7370002-1	Externally Relieved Body Screw

FAQs

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

What is the FSCG of the NSN 5305-00-321-4659?

The FSCG of the NSN 5305-00-321-4659 is 5305

Does the NSN 5305-00-321-4659 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-321-4659 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 5305-00-321-4659 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-321-4659 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 5305-00-321-4659 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Sun, Nov 18, 1973