1-839854-8

View detailed technical data, stock status, and sourcing information for: 1-839854-8
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-584-8641

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

right-hand thread direction, flat countersunk head style, 0.438 inches minimum and 0.500 inches maximum thread length, 0.500 inches nominal fastener length, 2a thread class

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: 0.438 inches minimum and 0.500 inches maximum
Fastener Length: 0.500 inches nominal
Head Style: flat countersunk
Head Diameter: 0.257 inches minimum and 0.279 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: plastic
Screw Material Document And Classification: zytel 101,fscm 18873 mfr ref single material response
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 1 type and 2s style

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
1-839854-8	Machine Screw
26C814-006	Machine Screw
A-A-55623-84	Machine Screw
MS18211-44C	Machine Screw
N2-632-8	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-584-8641?

The FSCG of the NSN 5305-00-584-8641 is 5305

Does the NSN 5305-00-584-8641 have a Schedule B code assigned?

Yes, the Schedule B code is 3926909987

Does NSN 5305-00-584-8641 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 5305-00-584-8641 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-584-8641 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 5305-00-584-8641 was assigned to the Federal Catalog?

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