5305-00-491-0427

Find complete technical information, availability, and procurement data for: 5305-00-491-0427
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-491-0427

Item Name Code

06657

Assigment Date

10/03/1969 (56 years ago)

2a thread class, pan head style, right-hand thread direction, 1.640 inches minimum and 1.760 inches maximum thread length, 1.740 inches minimum and 1.760 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: 1.640 inches minimum and 1.760 inches maximum
Fastener Length: 1.740 inches minimum and 1.760 inches maximum
Head Style: pan
Head Diameter: 0.473 inches minimum and 0.492 inches maximum
Head Height: 0.162 inches minimum and 0.175 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 80000 pounds per square inch
Screw Material: steel corrosion resisting or steel
Screw 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
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Special Features: 0.080 in. min,0.100 in. max dia hole drilled entire lg of longitudinal axis of screw
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
11228282	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-491-0427?

The FSCG of the NSN 5305-00-491-0427 is 5305

Does the NSN 5305-00-491-0427 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-491-0427 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 5305-00-491-0427 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-491-0427 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 5305-00-491-0427 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Fri, Oct 3, 1969