SP7143

View detailed technical data, stock status, and sourcing information for: SP7143
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-276-1497

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

2a thread class, 0.320 inches nominal fastener length, flat chamfer head style, 0.320 inches maximum thread length, right-hand thread direction

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: 0.320 inches maximum
Fastener Length: 0.320 inches nominal
Head Style: flat chamfer
Head Diameter: 0.295 inches minimum and 0.305 inches maximum
Head Height: 0.055 inches minimum and 0.065 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Screw Material: copper alloy 482
Screw Material Document And Classification: qq-b-637,comp 2 fed spec single material response or qq-b-639,comp 2 fed spec single material response
Thread Series Designator: unf

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
SP7143	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-276-1497?

The FSCG of the NSN 5305-00-276-1497 is 5305

Does the NSN 5305-00-276-1497 have a Schedule B code assigned?

Yes, the Schedule B code is 7415338550

Does NSN 5305-00-276-1497 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 5305-00-276-1497 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-276-1497 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 5305-00-276-1497 was assigned to the Federal Catalog?

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