248-SS-20

View detailed technical data, stock status, and sourcing information for: 248-SS-20
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-283-4618

Item Name Code

01852

Assigment Date

08/06/1988 (38 years ago)

0.360 inches minimum and 0.390 inches maximum thread length, knurled no. 4 head style, 2a thread class, 1.735 inches minimum and 1.765 inches maximum fastener length, right-hand thread direction

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: 1.735 inches minimum and 1.765 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: 1.365 inches minimum and 1.385 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 comp 303 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: 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
248-SS-20	Externally Relieved Body Screw

FAQs

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

What is the FSCG of the NSN 5305-01-283-4618?

The FSCG of the NSN 5305-01-283-4618 is 5305

Does the NSN 5305-01-283-4618 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-283-4618 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 5305-01-283-4618 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-283-4618 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 5305-01-283-4618 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Sat, Aug 6, 1988