5305-00-274-0478

Find complete technical information, availability, and procurement data for: 5305-00-274-0478
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-274-0478

Item Name Code

16282

Assigment Date

01/01/1963 (63 years ago)

3a thread class, 0.625 inches minimum thread length, right-hand thread direction, flat chamfer head style, 0.625 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: 3a
Thread Direction: right-hand
Thread Length: 0.625 inches minimum
Fastener Length: 0.625 inches nominal
Head Style: flat chamfer
Head Diameter: 0.303 inches minimum and 0.312 inches maximum
Head Height: 0.185 inches minimum and 0.190 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.190 inches
Width Across Flats: 0.156 inches minimum and 0.159 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 45.0 rockwell c maximum overall
Minimum Yield Strength: 130000 pounds per square inch
Surface Finish: 125.0 microinches bearing surface of head
Material: steel overall
Material Document And Classification: 66 fed std single material response overall
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 6 type

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-018-9132	No Name Available	01/01/1963

FAQs

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

What is the FSCG of the NSN 5305-00-274-0478?

The FSCG of the NSN 5305-00-274-0478 is 5305

Does the NSN 5305-00-274-0478 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-274-0478 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 5305-00-274-0478 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-274-0478 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 5305-00-274-0478 was assigned to the Federal Catalog?

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