5305-01-621-8438

Find complete technical information, availability, and procurement data for: 5305-01-621-8438
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-621-8438

Item Name Code

06657

Assigment Date

09/18/2013 (12 years ago)

1.079 inches nominal thread length, right-hand thread direction, 3a thread class, oval countersunk head style, 1.247 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: 3a
Thread Direction: right-hand
Thread Length: 1.079 inches nominal
Fastener Length: 1.247 inches nominal
Head Style: oval countersunk
Head Diameter: 0.238 inches minimum and 0.279 inches maximum
Internal Drive Style: cross recess type 1
End Item Identification: c-5 aircraft
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: aluminum alloy 2024
Screw Material Document And Classification: qq-a-225/6 fed spec single material response
Head Surface Treatment: paint
Screw Surface Treatment: anodize
Screw Surface Treatment Document And Classification: mil-a-8625 ty 1 cl 1 mil spec single treatment response
Special Features: painted area blue
Thread Series Designator: unjc

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
SC2000B632-14	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-621-8438?

The FSCG of the NSN 5305-01-621-8438 is 5305

Does the NSN 5305-01-621-8438 have a Schedule B code assigned?

Yes, the Schedule B code is 7616106000

Does NSN 5305-01-621-8438 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 5305-01-621-8438 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-621-8438 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 5305-01-621-8438 was assigned to the Federal Catalog?

It was assigned 12 years ago, on Wed, Sep 18, 2013