20507-87

View detailed technical data, stock status, and sourcing information for: 20507-87
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-441-4683

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

2.275 inches nominal thread length, right-hand thread direction, 2a thread class, flat countersunk head style, 2.375 inches nominal 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: 2.275 inches nominal
Fastener Length: 2.375 inches nominal
Head Style: flat countersunk
Head Diameter: 0.308 inches minimum and 0.332 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 32
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: steel comp 1010
Screw Material Document And Classification: qq-s-633 fed spec single material response
Screw Surface Treatment: cadmium
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 2s style and i type

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-282-4099	No Name Available	01/01/1963

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
20507-87	Machine Screw
AN505-8-38	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-441-4683?

The FSCG of the NSN 5305-00-441-4683 is 5305

Does the NSN 5305-00-441-4683 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-441-4683 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 5305-00-441-4683 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-441-4683 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 5305-00-441-4683 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963