C1662

View detailed technical data, stock status, and sourcing information for: C1662
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-426-6728

Item Name Code

18257

Assigment Date

01/01/1963 (63 years ago)

right-hand thread direction, 2a thread class, 2.000 inches nominal thread length, hexagon head style, 2.750 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: 2a
Thread Direction: right-hand
Thread Length: 2.000 inches nominal
Fastener Length: 2.750 inches nominal
Head Style: hexagon
Head Height: 0.547 inches nominal
Width Between Flats: 1.312 inches nominal
Nominal Thread Diameter: 0.875 inches
Thread Quantity Per Inch: 9
Hardness Rating: 18.0 rockwell c minimum and 34.0 rockwell c maximum overall
Material: steel comp 1035 overall
Material Document And Classification: qq-s-633 fed spec single material 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
C1662	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-426-6728?

The FSCG of the NSN 5305-00-426-6728 is 5305

Does the NSN 5305-00-426-6728 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-426-6728 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 5305-00-426-6728 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-426-6728 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 5305-00-426-6728 was assigned to the Federal Catalog?

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