131W61D51

View detailed technical data, stock status, and sourcing information for: 131W61D51
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-459-9544

Item Name Code

22846

Assigment Date

01/09/1970 (56 years ago)

0.290 inches minimum and 0.310 inches maximum bottom countersink diameter, right-hand thread direction, 0.170 inches minimum thread length, 0.335 inches minimum and 0.350 inches maximum fastener length, 3a thread class

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: 0.170 inches minimum
Fastener Length: 0.335 inches minimum and 0.350 inches maximum
Bottom Countersink Diameter: 0.290 inches minimum and 0.310 inches maximum
Head Height: 0.055 inches minimum and 0.060 inches maximum
Width Between Flats: 0.302 inches minimum and 0.322 inches maximum
Shoulder Diameter: 0.184 inches minimum and 0.186 inches maximum first shoulder
Shoulder Length: 0.083 inches minimum and 0.084 inches maximum first shoulder
Internal Drive Style: w/o internal drive
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Countersink Angle: 119.5 degrees minimum and 120.5 degrees maximum
Shoulder Shape: round first shoulder
Material: steel overall
Surface Treatment: passivate 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
131W61D51	Shoulder Screw
ES-131W61D51	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-00-459-9544?

The FSCG of the NSN 5305-00-459-9544 is 5305

Does the NSN 5305-00-459-9544 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-459-9544 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 5305-00-459-9544 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-459-9544 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 5305-00-459-9544 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Fri, Jan 9, 1970