5305-00-022-4048

Find complete technical information, availability, and procurement data for: 5305-00-022-4048
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-022-4048

Item Name Code

18257

Assigment Date

01/01/1963 (63 years ago)

An externally threaded fastener designed for insertion into holes in assembled parts, for mating with a preformed internal thread and for tightening or releasing by torquing the head. The threaded and unthreaded portions are both of the same nominal diameter of 0.190 inch (5 mm) or larger. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. The thread length being the controlled dimension, the grip length is not specified. A locking feature may be incorporated in the design of the head or threads. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. Excludes:bolt,machine; bolt,externally relieved body; bolt,internal wrenching; and screw,cap,socket head.

1.125 inches minimum and 1.250 inches maximum thread length, 1.844 inches minimum and 1.906 inches maximum fastener length, hexagon head style, right-hand thread direction, 2a thread class

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: 1.125 inches minimum and 1.250 inches maximum
Fastener Length: 1.844 inches minimum and 1.906 inches maximum
Head Style: hexagon
Head Height: 0.262 inches minimum and 0.300 inches maximum
Width Between Flats: 0.603 inches minimum and 0.625 inches maximum
Nominal Thread Diameter: 0.438 inches
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 32.0 rockwell c minimum and 38.0 rockwell c maximum overall
Material: steel overall
Surface Treatment: cadmium or zinc overall
Surface Treatment Document And Classification: qq-p-416 fed spec 1st treatment response or qq-z-325 fed spec 2nd treatment response overall
Thread Series Designator: unf
Nondefinitive Spec/Std Data: 2 type and 10p style and 8 grade

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-022-3978	No Name Available	02/01/1980
5305-00-639-5128	No Name Available	08/01/1979

FAQs

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

What is the FSCG of the NSN 5305-00-022-4048?

The FSCG of the NSN 5305-00-022-4048 is 5305

Does the NSN 5305-00-022-4048 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-022-4048 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 5305-00-022-4048 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-022-4048 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 5305-00-022-4048 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963