5305-01-556-9641

Find complete technical information, availability, and procurement data for: 5305-01-556-9641
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-556-9641

Item Name Code

06657

Assigment Date

10/10/2007 (18 years ago)

"a device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. May include provisions for manual operation. At least one set of contacts must be in series with the actuating element(s). A combination of semiconductor and passive devices may be used in lieu of contacts. For automatically operated items in which the actuating (tripping) element and contacts are not in series, see relay (as modified). For items which are operated both manually and automatically but the actuating elements and contact are not in series, see relay-switch. Excludes:circuit breaker box and magneto "breaker" assemblies. See also switch (as modified); and controller."

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

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: 0.340 inches minimum and 0.385 inches maximum
Locking Feature: patch or pellet or strip
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: steel or steel corrosion resisting
Screw Surface Treatment: oxide
Color: black
Thread Series Designator: unf

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
MS51960-65BL	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-556-9641?

The FSCG of the NSN 5305-01-556-9641 is 5305

Does the NSN 5305-01-556-9641 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-556-9641 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 5305-01-556-9641 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-556-9641 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 5305-01-556-9641 was assigned to the Federal Catalog?

It was assigned 18 years ago, on Wed, Oct 10, 2007