WILLIAMS NO. 21

View detailed technical data, stock status, and sourcing information for: WILLIAMS NO. 21
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-320-1047

Item Name Code

01853

Assigment Date

05/19/1990 (36 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes:thumbscrew.

right-hand thread direction, 0.750 inches nominal eye inside diameter, 1.125 inches nominal shank length, 2a thread class, 0.875 inches nominal 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: 0.875 inches nominal
Eye Inside Diameter: 0.750 inches nominal
Shank Length: 1.125 inches nominal
Eye Stock Diameter: 0.219 inches nominal
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Eye Outside Width: 1.188 inches nominal
Material: steel overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty2 cl2 fed spec single treatment response overall
Style Designator: round, closed w/shoulder
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
54B7022H07	Eye Bolt
WILLIAMS NO. 21	Eye Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-320-1047?

The FSCG of the NSN 5306-01-320-1047 is 5306

Does the NSN 5306-01-320-1047 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-320-1047 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 5306-01-320-1047 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-320-1047 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 5306-01-320-1047 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Sat, May 19, 1990