5305-01-566-1098

Find complete technical information, availability, and procurement data for: 5305-01-566-1098
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-566-1098

Item Name Code

06657

Assigment Date

08/20/2008 (17 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

1.500 inches nominal fastener length, 1.400 inches nominal thread length, right-hand thread direction, 2a thread class, flat countersunk undercut 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: 2a
Thread Direction: right-hand
Thread Length: 1.400 inches nominal
Fastener Length: 1.500 inches nominal
Head Style: flat countersunk undercut
Head Diameter: 0.306 inches minimum and 0.332 inches maximum
Head Height: 0.100 inches nominal
Internal Drive Style: cross recess type 1
End Item Identification: 5865-01-535-8887 detecting system, contermeasures
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 1120 pounds per square inch
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: steel corrosion resisting
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
MS51959-51B	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-566-1098?

The FSCG of the NSN 5305-01-566-1098 is 5305

Does the NSN 5305-01-566-1098 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-566-1098 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 5305-01-566-1098 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-566-1098 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 5305-01-566-1098 was assigned to the Federal Catalog?

It was assigned 17 years ago, on Wed, Aug 20, 2008