5305-00-902-7890

Find complete technical information, availability, and procurement data for: 5305-00-902-7890
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-902-7890

Item Name Code

06657

Assigment Date

02/17/1967 (59 years ago)

0.323 inches minimum and 0.353 inches maximum fastener length, right-hand thread direction, 0.263 inches minimum and 0.323 inches maximum thread length, 3a thread class, flat countersunk 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: 3a
Thread Direction: right-hand
Thread Length: 0.263 inches minimum and 0.323 inches maximum
Fastener Length: 0.323 inches minimum and 0.353 inches maximum
Head Style: flat countersunk
Head Diameter: 0.322 inches minimum and 0.387 inches maximum
Internal Drive Style: torque set
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: steel comp e4340 or steel comp 8740 or steel comp 8735 or steel comp 6150 or steel comp 4140 or steel comp 4037
Screw Material Document And Classification: mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or mil-s-6098 mil spec 3rd material response or mil-s-8503 mil spec 4th material response or mil-s-5626 mil spec 5th material response or ams 6300 assn std 6th material response
Screw Surface Treatment: cadmium and chromate
Thread Series Designator: unf
Specification/Standard Data: 80205-nas1623 professional/industrial association standard

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
NAS1623-1	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-902-7890?

The FSCG of the NSN 5305-00-902-7890 is 5305

Does the NSN 5305-00-902-7890 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-902-7890 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 5305-00-902-7890 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-902-7890 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 5305-00-902-7890 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Fri, Feb 17, 1967