3B1023

View detailed technical data, stock status, and sourcing information for: 3B1023

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3B1023
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-261-2612
Item Name Code
01857
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.)

hexagon nut style, 1.115 inches minimum and 1.135 inches maximum width across flats, 2b thread class, right-hand thread direction, 0.802 inches minimum and 0.822 inches maximum nut height

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
2b
Thread Direction
right-hand
Nut Style
hexagon
Nut Height
0.802 inches minimum and 0.822 inches maximum
Width Across Flats
1.115 inches minimum and 1.135 inches maximum
Thread Series
unf
Thread Quantity Per Inch
18
Hardness Rating
42.0 rockwell c minimum and 50.0 rockwell c maximum
Nominal Thread Size
0.625 inches
Bearing Surface Type
chamfered
Material
steel overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5120-00-355-6198 No Name Available 03/10/1967

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
3B1023 Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-00-261-2612?
The FSCG of the NSN 5310-00-261-2612 is 5310
Does the NSN 5310-00-261-2612 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-261-2612 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 5310-00-261-2612 contain precious materials?
Item does not contain precious metal.
Does NSN 5310-00-261-2612 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 5310-00-261-2612 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

Professional Distribution

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