221601S1-3

View detailed technical data, stock status, and sourcing information for: 221601S1-3
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-527-4871

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

0.188 inches nominal fastener length, right-hand thread direction, 2a thread class, flat chamfer head style, 0.188 inches maximum thread 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: 0.188 inches maximum
Fastener Length: 0.188 inches nominal
Head Style: flat chamfer
Head Diameter: 0.111 inches nominal
Head Height: 0.046 inches nominal
Internal Drive Style: slot
Nominal Thread Diameter: 0.073 inches
Thread Quantity Per Inch: 72
Part Name Assigned By Controlling Agency: navy special project
Screw Material: steel comp 303
Screw Material Document And Classification: qq-s-764 cond a fed spec single material response
Screw Surface Treatment: passivate
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
221601S1-3	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-527-4871?

The FSCG of the NSN 5305-00-527-4871 is 5305

Does the NSN 5305-00-527-4871 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-527-4871 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 5305-00-527-4871 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-527-4871 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 5305-00-527-4871 was assigned to the Federal Catalog?

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