121-205

View detailed technical data, stock status, and sourcing information for: 121-205
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-940-9027

Item Name Code

01847

Assigment Date

01/01/1962 (64 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.

hexagon head style, 0.594 inches nominal thread length, 0.250 inches minimum and 0.260 inches maximum head height, 2a thread class, 0.750 inches nominal fastener 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 Length: 0.594 inches nominal
Fastener Length: 0.750 inches nominal
Head Style: hexagon
Head Height: 0.250 inches minimum and 0.260 inches maximum
Width Between Flats: 0.551 inches minimum and 0.562 inches maximum
Locking Feature: distortions bearing surface of head
Nominal Thread Diameter: 0.375 inches
Grip Length: 0.156 inches nominal
Features Provided: unfinished head
Thread Quantity Per Inch: 16
Material: steel overall
Thread Series Designator: unc

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
121-205	Machine Bolt
8350599	Machine Bolt
9409027	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-940-9027?

The FSCG of the NSN 5306-00-940-9027 is 5306

Does the NSN 5306-00-940-9027 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-940-9027 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 5306-00-940-9027 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-940-9027 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 5306-00-940-9027 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962