SM-B-447300

View detailed technical data, stock status, and sourcing information for: SM-B-447300
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-103-4155

Item Name Code

06660

Assigment Date

11/13/1980 (45 years ago)

A straight, hollow product, welded or seamless, of round, square, or any other cross section and continuous periphery, which does not conform in cross sectional dimensions to recognized pipe standards. It is designed to convey fluids, gasses, and/or semisolids. It may be rolled into coils for ease in handling. For items designed to join a tube or tube fitting to another tube, pipe, or hose or fitting, see adapter (as modified); couplig (as modified); or nipple (as modified). Excludes: tube,bent (as modified); pipe,metallic; spacer sleeve; metal bar (hollow); and items with fitting, except end protectors.

0.140 inches nominal thread length, 0.325 inches nominal fastener length, right-hand thread direction, 2a thread class, fillister 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: 2a
Thread Direction: right-hand
Thread Length: 0.140 inches nominal
Fastener Length: 0.325 inches nominal
Head Style: fillister
Head Diameter: 0.173 inches nominal
Head Height: 0.098 inches nominal
Washer Quantity: 1
Internal Drive Style: slot
Nominal Thread Diameter: 0.112 inches
Thread Quantity Per Inch: 40
Hardness Rating: 36.0 rockwell c minimum and 38.0 rockwell c maximum overall
Primary Washer Outside Diameter: 0.172 inches maximum
Primary Washer Style: flat
Primary Washer Material Thickness: 0.020 inches minimum and 0.026 inches maximum
Material: steel comp 4130 overall
Material Document And Classification: mil-s-6758 cond c and 4 mil spec single material response overall
Surface Treatment: passivate head
Surface Treatment Document And Classification: mil-f-14072 -262a mil spec single treatment response head
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
SM-B-447300	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-01-103-4155?

The FSCG of the NSN 5305-01-103-4155 is 5305

Does the NSN 5305-01-103-4155 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-103-4155 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 5305-01-103-4155 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-103-4155 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 5305-01-103-4155 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Thu, Nov 13, 1980