258-SS-20

View detailed technical data, stock status, and sourcing information for: 258-SS-20
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part 258-SS-20 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-147-8712

Item Name Code

01852

Assigment Date

02/24/1983 (43 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes:thumbscrew.

right-hand thread direction, 0.375 inches nominal thread length, 0.937 inches nominal fastener length, 3a thread class, knurled no. 4 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: 3a
Thread Direction: right-hand
Thread Length: 0.375 inches nominal
Fastener Length: 0.937 inches nominal
Head Style: knurled no. 4
Head Diameter: 0.562 inches nominal
Head Height: 0.250 inches nominal
First Diameter From Head: 0.170 inches minimum and 0.180 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.562 inches nominal
Internal Drive Style: slot
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Externally Relieved Body Diameter Quantity: 1
Special Features: straight knurl
Material: steel corrosion resisting overall
Surface Treatment: passivate overall
Thread Series Designator: unf

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
258-SS-20	Externally Relieved Body Screw
4164-M07-F09	Externally Relieved Body Screw
502662-0003	Externally Relieved Body Screw
736-937-SS-12	Externally Relieved Body Screw

FAQs

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

What is the FSCG of the NSN 5305-01-147-8712?

The FSCG of the NSN 5305-01-147-8712 is 5305

Does the NSN 5305-01-147-8712 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-147-8712 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 5305-01-147-8712 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-147-8712 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 5305-01-147-8712 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Thu, Feb 24, 1983