2051799-0702

View detailed technical data, stock status, and sourcing information for: 2051799-0702
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-111-5553

Item Name Code

06660

Assigment Date

09/16/1968 (57 years ago)

A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

0.188 inches nominal head height, 2a thread class, 0.625 inches nominal fastener length, right-hand thread direction, hexagon head style

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
Fastener Length: 0.625 inches nominal
Head Style: hexagon
Head Height: 0.188 inches nominal
Width Between Flats: 0.438 inches nominal
Washer Quantity: 1
Internal Drive Style: w/o internal drive
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Primary Washer Outside Diameter: 0.567 inches minimum and 0.580 inches maximum
Primary Washer Style: flat external teeth
Primary Washer Material Thickness: 0.025 inches nominal
Material: steel overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 203 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
2051799-0702	Assembled Washer Screw
H82-10	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-00-111-5553?

The FSCG of the NSN 5305-00-111-5553 is 5305

Does the NSN 5305-00-111-5553 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-111-5553 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 5305-00-111-5553 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-111-5553 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 5305-00-111-5553 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Mon, Sep 16, 1968