3020228CL2

View detailed technical data, stock status, and sourcing information for: 3020228CL2
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-172-6921

Item Name Code

27851

Assigment Date

11/20/1971 (54 years ago)

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes:nut (1), self-locking, cap.

2.365 inches minimum and 2.385 inches maximum fastener length, right-hand thread direction, double hexagon extended washer head style, 3a thread class, 0.695 inches minimum and 0.715 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: 3a
Thread Direction: right-hand
Thread Length: 0.695 inches minimum and 0.715 inches maximum
Fastener Length: 2.365 inches minimum and 2.385 inches maximum
Head Style: double hexagon extended washer
Head Height: 0.412 inches minimum and 0.432 inches maximum
Width Between Flats: 0.491 inches nominal
Extended Washer Diameter: 0.552 inches minimum and 0.572 inches maximum
Extended Washer Thickness: 0.090 inches minimum and 0.100 inches maximum
Grip Diameter: 0.3748 inches minimum and 0.3750 inches maximum
Nominal Thread Diameter: 0.375 inches
Grip Length: 1.587 inches minimum and 1.670 inches maximum
Thread Quantity Per Inch: 24
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Material: iron alloy 660 overall
Material Document And Classification: ams 5731 assn std single material response overall
Surface Treatment: cadmium head
Surface Treatment: cadmium threads
Surface Treatment Document And Classification: ams 2400 assn std single treatment response head
Surface Treatment Document And Classification: ams 2400 assn std single treatment response threads
Thread Series Designator: unjf

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
3020228CL2	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-172-6921?

The FSCG of the NSN 5306-00-172-6921 is 5306

Does the NSN 5306-00-172-6921 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-172-6921 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 5306-00-172-6921 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-172-6921 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 5306-00-172-6921 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Sat, Nov 20, 1971