C320000057

View detailed technical data, stock status, and sourcing information for: C320000057
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-488-4252

Item Name Code

01852

Assigment Date

06/18/1969 (57 years ago)

2a thread class, 0.250 inches minimum thread length, right-hand thread direction, pan head style, 0.594 inches minimum and 0.625 inches maximum 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: 2a
Thread Direction: right-hand
Thread Length: 0.250 inches minimum
Fastener Length: 0.594 inches minimum and 0.625 inches maximum
Head Style: pan
Head Diameter: 0.256 inches minimum and 0.270 inches maximum
Head Height: 0.087 inches minimum and 0.097 inches maximum
First Diameter From Head: 0.087 inches minimum and 0.092 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.344 inches minimum and 0.375 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Externally Relieved Body Diameter Quantity: 1
Material: steel corrosion resisting or steel overall
Material Document And Classification: qq-s-763,300 series fed spec 1st material response or 66,300 series fed std 1st material response or comp 16-18 or 18-8 assn std 2nd material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: c190000120,fscm 88818 mfr ref single treatment response overall
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
C320000057	Externally Relieved Body Screw

FAQs

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

What is the FSCG of the NSN 5305-00-488-4252?

The FSCG of the NSN 5305-00-488-4252 is 5305

Does the NSN 5305-00-488-4252 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-488-4252 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 5305-00-488-4252 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-488-4252 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 5305-00-488-4252 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Wed, Jun 18, 1969