ST3M571-8-29

View detailed technical data, stock status, and sourcing information for: ST3M571-8-29
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-393-1866

Item Name Code

15903

Assigment Date

07/15/1994 (32 years ago)

A flat metal or plastic item of various peripheral shapes having a solid (not laminated) cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole having a solid rectangular cross-section use disk, solid, plain. For round or hexagonal items with only one hole centrally located and with the length (thickness) exceeding 25 percent of the outside diameter or distance across peripheral flats, see spacer, sleeve. The thickness between the two parallel bearing surfaces must be 0.006 inch, (0.152 mm) or more for items less than 1/4 inch (6.35 mm) across the peripheral diameter, or smallest overall outside dimension, or must be 0.016 inch (0.406 mm) or more for items 1/4 inch (6.35 mm) or greater across the peripheral diameter or smallest overall outside dimension. For items with a thickness less than those indicated above, see shim. For items with one hole centrally located conforming to the above dimensional criteria use washer, flat or spacer, ring as applicable. When thickness and/or outside_diameter_or_smallest_overall_outside_dimension_is_designated_as_a_tolerance/dimension_the_maximum_dimension_will_be_used_to_determine_compliance._excludes:gasket;_insulator_(as_modified)_and_mounting_pad,_electrical-electronic_component.____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

0.757 inches nominal thread length, 3a thread class, 2.554 inches minimum and 2.584 inches maximum fastener length, right-hand thread direction, double hexagon extended washer 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: 0.757 inches nominal
Fastener Length: 2.554 inches minimum and 2.584 inches maximum
Head Style: double hexagon extended washer
Head Height: 0.504 inches nominal
Width Between Flats: 0.564 inches nominal
Extended Washer Diameter: 0.113 inches minimum and 0.133 inches maximum
Extended Washer Thickness: 0.547 inches minimum and 0.562 inches maximum
Grip Diameter: 0.4990 inches minimum and 0.4995 inches maximum
Nominal Thread Diameter: 0.500 inches
Grip Length: 1.812 inches nominal
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 220000 pounds per square inch
Material: steel comp xm-13 overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response 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
11831-8-29	Shear Bolt
MB84-8-29	Shear Bolt
ST3M571-8-29	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-393-1866?

The FSCG of the NSN 5306-01-393-1866 is 5306

Does the NSN 5306-01-393-1866 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-393-1866 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 5306-01-393-1866 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-393-1866 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 5306-01-393-1866 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Fri, Jul 15, 1994