RB21337-2

View detailed technical data, stock status, and sourcing information for: RB21337-2
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-529-0652

Item Name Code

06657

Assigment Date

09/01/1974 (51 years ago)

0.500 inches nominal thread length, fillister head style, 2a thread class, 3.094 inches minimum and 3.125 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: 0.500 inches nominal
Fastener Length: 3.094 inches minimum and 3.125 inches maximum
Head Style: fillister
Head Diameter: 0.250 inches minimum and 0.270 inches maximum
Head Height: 0.106 inches minimum and 0.113 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 32
Screw Material Document And Classification: qq-s-633 fed spec 1st material response or qq-s-633 fsb1112 fed spec 2nd material response or qq-s-633 fsb1113 fed spec 3rd material response
Screw Surface Treatment: cadmium
Screw Surface Treatment Document And Classification: qq-p-416 ty 2 cl 3 fed spec single treatment response
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
RB21337-2	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-529-0652?

The FSCG of the NSN 5305-00-529-0652 is 5305

Does NSN 5305-00-529-0652 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 5305-00-529-0652 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-529-0652 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 5305-00-529-0652 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Sun, Sep 1, 1974