5306-01-708-6108

Find complete technical information, availability, and procurement data for: 5306-01-708-6108
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-708-6108

Item Name Code

15903

Assigment Date

04/13/2023 (3 years ago)

A dome-shaped head covering of metal or other suitable material, designed to be worn over a liner to protect the head from flying projectiles. Excludes:helmet,ground troops'-parachutists' and helmet,parachutists'.

right-hand thread direction, 3a thread class, 1.323 inches minimum and 1.343 inches maximum fastener length, 0.625 inches minimum thread length, double hexagon w/hole 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: 0.625 inches minimum
Fastener Length: 1.323 inches minimum and 1.343 inches maximum
Head Style: double hexagon w/hole
Head Diameter: 0.422 inches minimum and 0.437 inches maximum
Head Height: 0.378 inches minimum and 0.398 inches maximum
Width Between Flats: 0.4375 inches nominal
Extended Washer Diameter: 0.639 inches minimum and 0.649 inches maximum
Extended Washer Thickness: 0.081 inches minimum and 0.101 inches maximum
Grip Diameter: 0.3735 inches minimum and 0.3745 inches maximum
Nominal Thread Diameter: 0.3750 inches
Grip Length: 0.678 inches minimum and 0.698 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 17100 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Chamfer Angle: 30.0 degrees nominal and 45.0 degrees nominal
Part Name Assigned By Controlling Agency: bolt, tension, steel, external wrenching, flanged, 12-point, 180 ksi ftu, 450 deg f
Special Features: material: alloy steel - 4140 (uns g41400) per ams6382, 4340 (uns g43406) per ams6415 or ams6484, or 8740 (uns g87400) per ams6322 ams6325 or ams6327. finish: cadmium plate in accordance with ams-qq-p-416, type ii, class 2. double shear strength: 6980 lbf min. surface roughness: bearing surface of head and shank: 32 microinches ra; all other surfaces: 125 microinches ra per asme b46.1.
Material: steel comp 4140 or steel comp 4340 or steel comp 8740 overall
Material Document And Classification: ams6382 international std/spec all material responses or ams6415 international std/spec all material responses or ams6484 international std/spec all material responses or ams6484 international std/spec all material responses or ams6322 international std/spec all material responses or ams6325 international std/spec all material responses or ams6327 international std/spec all material responses overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: ams-qq-p-416, type ii, class 2 international std/spec all treatment responses overall
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas-21250 professional/industrial association standard

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
MS21250-06011	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-708-6108?

The FSCG of the NSN 5306-01-708-6108 is 5306

Does the NSN 5306-01-708-6108 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-708-6108 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 5306-01-708-6108 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-708-6108 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 5306-01-708-6108 was assigned to the Federal Catalog?

It was assigned 3 years ago, on Thu, Apr 13, 2023