181125-1

View detailed technical data, stock status, and sourcing information for: 181125-1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-058-7081

Item Name Code

01857

Assigment Date

03/31/1978 (48 years ago)

right-hand thread direction, hexagon nut style, 3b thread class, 0.125 inches nominal nut height, 0.030 inches minimum and 0.035 inches maximum drilled hole 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: 3b
Thread Direction: right-hand
Nut Style: hexagon
Nut Height: 0.125 inches nominal
Drilled Hole Diameter: 0.030 inches minimum and 0.035 inches maximum
Hole Type And Quantity: 2 drilled
Width Across Flats: 0.303 inches minimum and 0.315 inches maximum
Thread Series: unf
Thread Quantity Per Inch: 32
Hardness Rating: 25.0 rockwell c minimum and 32.0 rockwell c maximum
Nominal Thread Size: 0.190 inches
Hole Configuration Style: configuration b
Bearing Surface Type: chamfered
Part Name Assigned By Controlling Agency: navy special project
Material: steel comp e4340 or steel comp 4130 or steel comp 8740 overall
Material Document And Classification: mil-s-5000,cond c mil spec all material responses overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 2 fed spec single treatment response 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
181125-1	Hexagon Plain Nut

FAQs

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

What is the FSCG of the NSN 5310-01-058-7081?

The FSCG of the NSN 5310-01-058-7081 is 5310

Does the NSN 5310-01-058-7081 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-058-7081 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 5310-01-058-7081 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-058-7081 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 5310-01-058-7081 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Fri, Mar 31, 1978