20794-3

View detailed technical data, stock status, and sourcing information for: 20794-3
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-005-8292

Item Name Code

01852

Assigment Date

06/11/1972 (54 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes:undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also bolt, externally relieved body and bolt, internal wrenching.

thread length: 0.141-0.171", steel material

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Series Designator: Unc
Surface Treatment Document and Classification: Mil-c-13924 cl 4 mil spec single treatment response
Surface Treatment: Oxide
Material Document and Classification: Qq-s-763 fed spec all material responses
Material: Steel comp
Externally Relieved Body Diameter Quantity: 1
Iii Part Name Assigned By Controlling Agency: Navy special project
Thread Quantity Per Inch: 32
Nominal Thread Diameter: 0.138 inches
Internal Drive Style: Cross recess type 1
First Diameter From Head: 0.081 inches minimum and 0.091 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.339 inches minimum and 0.349 inches maximum
Head Style: Pan
Head Diameter: 0.256 inches minimum and 0.27 inches maximum
Head Height: 0.087 inches minimum and 0.097 inches maximum
Fastener Length: 0.49 inches minimum and 0.51 inches maximum
Thread Direction: Right-hand
Thread Length: 0.141 inches minimum and 0.171 inches maximum
Thread Class: 2a

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
20794-3	Externally Relieved Body Screw

FAQs

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

What is the FSCG of the NSN 5305-00-005-8292?

The FSCG of the NSN 5305-00-005-8292 is 5305

Does the NSN 5305-00-005-8292 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-005-8292 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 5305-00-005-8292 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-005-8292 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 5305-00-005-8292 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Sun, Jun 11, 1972