MS20020-24

View detailed technical data, stock status, and sourcing information for: MS20020-24
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-620-2667

Item Name Code

06666

Assigment Date

02/22/1975 (51 years ago)

A preformed metallic or nonmetallic sheet of various shapes and contours which is used as a segment of the covering of an airframe. It may be predrilled to facilitate mounting. Excludes:cloth, airplane

right-hand thread direction, 1.600 inches minimum and 1.650 inches maximum thread length, 2.115 inches minimum and 2.125 inches maximum head diameter, 3.110 inches minimum and 3.140 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: 1.600 inches minimum and 1.650 inches maximum
Fastener Length: 3.110 inches minimum and 3.140 inches maximum
Head Diameter: 2.115 inches minimum and 2.125 inches maximum
Head Height: 1.240 inches minimum and 2.260 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 1.250 inches
Width Across Flats: 1.001 inches minimum and 1.005 inches maximum
Thread Quantity Per Inch: 12
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 34.0 rockwell c minimum and 40.0 rockwell c maximum overall
Material: steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 overall
Material Document And Classification: mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 type 2 class 2 fed spec all treatment responses overall
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
MS20020-24	Internal Wrenching Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-620-2667?

The FSCG of the NSN 5306-00-620-2667 is 5306

Does the NSN 5306-00-620-2667 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-620-2667 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 5306-00-620-2667 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-620-2667 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 5306-00-620-2667 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Sat, Feb 22, 1975