666214-3

View detailed technical data, stock status, and sourcing information for: 666214-3
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-059-1073

Item Name Code

04905

Assigment Date

04/06/1978 (48 years ago)

2a thread class, hexagon head style, right-hand thread direction, 3.000 inches minimum and 3.095 inches maximum fastener length, 0.483 inches minimum and 0.545 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: 2a
Thread Direction: right-hand
Thread Length: 0.483 inches minimum and 0.545 inches maximum
Fastener Length: 3.000 inches minimum and 3.095 inches maximum
Head Style: hexagon
Head Height: 0.240 inches minimum and 0.260 inches maximum
Width Between Flats: 0.928 inches minimum and 0.940 inches maximum
Shoulder Diameter: 0.625 inches nominal first shoulder
Shoulder Length: 1.395 inches minimum and 1.405 inches maximum first shoulder
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 24
Hardness Rating: 35.0 rockwell c minimum and 40.0 rockwell c maximum overall
Shoulder Shape: round first shoulder
Special Features: thread dia and 0.375 dia eccentric to 0.625 shoulder by 0.020 in.
Material: steel comp 4140 or steel comp e4340 or steel comp 4340 or steel comp 8630 or steel comp 4130 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec single treatment response 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
666214-3	Shoulder Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-059-1073?

The FSCG of the NSN 5306-01-059-1073 is 5306

Does the NSN 5306-01-059-1073 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-059-1073 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 5306-01-059-1073 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-059-1073 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 5306-01-059-1073 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Thu, Apr 6, 1978