D16121-1A

View detailed technical data, stock status, and sourcing information for: D16121-1A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-024-8474

Item Name Code

01847

Assigment Date

07/21/1976 (50 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, 0.300 inches nominal thread length, 0.330 inches nominal head height, 3a thread class, 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: 0.300 inches nominal
Head Style: double hexagon extended washer
Head Height: 0.330 inches nominal
Width Between Flats: 0.308 inches nominal
Extended Washer Diameter: 0.438 inches nominal
Extended Washer Thickness: 0.065 inches nominal
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.300 inches nominal
Thread Quantity Per Inch: 28
Material: iron alloy 660 overall
Material Document And Classification: ams 5732 assn std single material response overall
Thread Series Designator: unjf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-01-439-1088	No Name Available	03/01/2014

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
145-525-9100	Machine Bolt
D16121-1A	Machine Bolt
LF44-0042	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-024-8474?

The FSCG of the NSN 5306-01-024-8474 is 5306

Does the NSN 5306-01-024-8474 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-024-8474 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 5306-01-024-8474 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-024-8474 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 5306-01-024-8474 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Wed, Jul 21, 1976