5306-00-687-6285

Find complete technical information, availability, and procurement data for: 5306-00-687-6285
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-687-6285

Item Name Code

06666

Assigment Date

01/01/1963 (63 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.)

right-hand thread direction, 2.137 inches minimum and 2.147 inches maximum fastener length, 3a thread class, 0.562 inches minimum thread length, 0.521 inches minimum and 0.531 inches maximum head diameter

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: 0.562 inches minimum
Fastener Length: 2.137 inches minimum and 2.147 inches maximum
Head Diameter: 0.521 inches minimum and 0.531 inches maximum
Head Height: 0.312 inches nominal
Shank Unthreaded Hole Diameter: 0.076 inches nominal first hole
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.312 inches
Width Across Flats: 0.219 inches minimum and 0.221 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 2.000 inches nominal first hole
Material: steel overall
Surface Treatment: cadmium overall
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
S6165-20226-2	Internal Wrenching Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-687-6285?

The FSCG of the NSN 5306-00-687-6285 is 5306

Does the NSN 5306-00-687-6285 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-687-6285 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 5306-00-687-6285 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-687-6285 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 5306-00-687-6285 was assigned to the Federal Catalog?

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