MS20035-4

View detailed technical data, stock status, and sourcing information for: MS20035-4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-139-4933

Item Name Code

01847

Assigment Date

09/10/1971 (54 years ago)

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

right-hand thread direction, 1.031 inches minimum and 1.046 inches maximum fastener length, 0.530 inches minimum and 0.547 inches maximum thread length, 3a thread class, hexagon head style

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: 0.530 inches minimum and 0.547 inches maximum
Fastener Length: 1.031 inches minimum and 1.046 inches maximum
Head Style: hexagon
Head Height: 0.172 inches minimum and 0.204 inches maximum
Width Between Flats: 0.490 inches minimum and 0.502 inches maximum
Nominal Thread Diameter: 0.312 inches
Grip Length: 0.484 inches minimum and 0.516 inches maximum
Features Provided: finished head
Thread Quantity Per Inch: 24
Hardness Rating: 27.0 rockwell c minimum and 37.0 rockwell c maximum overall
Material: steel corrosion resisting overall
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
LE20035-4	Machine Bolt
MS20035-4	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-139-4933?

The FSCG of the NSN 5306-00-139-4933 is 5306

Does the NSN 5306-00-139-4933 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-139-4933 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 5306-00-139-4933 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-139-4933 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 5306-00-139-4933 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, Sep 10, 1971