238-SS-20

View detailed technical data, stock status, and sourcing information for: 238-SS-20
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-379-4196

Item Name Code

01852

Assigment Date

08/31/1993 (32 years ago)

A headless fastener not exceeding 12 inches (304.8 mm) in length having an external thread of one nominal diameter running from end to end. See also rod, continuous thread.

right-hand thread direction, knurled no. 4 head style, 0.360 inches minimum and 0.390 inches maximum thread length, 2a thread class, 1.110 inches minimum and 1.140 inches maximum 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: 2a
Thread Direction: right-hand
Thread Length: 0.360 inches minimum and 0.390 inches maximum
Fastener Length: 1.110 inches minimum and 1.140 inches maximum
Head Style: knurled no. 4
Head Diameter: 0.750 inches minimum and 0.765 inches maximum
Head Height: 0.240 inches minimum and 0.260 inches maximum
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: 0.740 inches minimum and 0.760 inches maximum
Point Style: cone
Internal Drive Style: slot
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Externally Relieved Body Diameter Quantity: 1
Material: steel corrosion resisting overall
Material Document And Classification: astm a581 assn std single material response or astm a582 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: mil-f-14072-e300 mil 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
238-SS-20	Externally Relieved Body Screw

FAQs

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

What is the FSCG of the NSN 5305-01-379-4196?

The FSCG of the NSN 5305-01-379-4196 is 5305

Does the NSN 5305-01-379-4196 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-379-4196 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 5305-01-379-4196 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-379-4196 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 5305-01-379-4196 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Tue, Aug 31, 1993