5310-01-611-9581

Find complete technical information, availability, and procurement data for: 5310-01-611-9581
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-611-9581

Item Name Code

01857

Assigment Date

09/28/2012 (13 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.)

a/s48m-4 ums end item identification, 0.203 inches minimum and 0.235 inches maximum nut height, 2b thread class, hexagon nut 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: 2b
Thread Direction: right-hand
Nut Style: hexagon
Nut Height: 0.203 inches minimum and 0.235 inches maximum
End Item Identification: a/s48m-4 ums
Width Across Flats: 0.425 inches minimum and 0.438 inches maximum
Thread Series: unc
Thread Quantity Per Inch: 20
Hardness Rating: 32.0 rockwell c maximum
Nominal Thread Size: 0.250 inches
Bearing Surface Type: flat
Material: steel overall
Surface Treatment: zinc overall

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
AEN04C250000WA9D71	Hexagon Plain Nut
ASMEB18.24 AEN04C250000WA9D71	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-611-9581?

The FSCG of the NSN 5310-01-611-9581 is 5310

Does the NSN 5310-01-611-9581 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-611-9581 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 5310-01-611-9581 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-611-9581 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 5310-01-611-9581 was assigned to the Federal Catalog?

It was assigned 13 years ago, on Fri, Sep 28, 2012