EWN22-1018

View detailed technical data, stock status, and sourcing information for: EWN22-1018
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-857-3392

Item Name Code

29729

Assigment Date

01/01/1962 (64 years ago)

3b thread class, soluble lubricant lubrication, right-hand thread direction, prevailing torque all metal design locking feature, 1.245 inches maximum washer outside 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
Locking Feature: prevailing torque all metal design
Washer Outside Diameter: 1.245 inches maximum
Lubrication: soluble lubricant
Overall Height: 0.864 inches maximum
Nut Style: double hexagon
Washer Thickness: 0.175 inches minimum
Width Across Flats: 0.803 inches minimum and 0.814 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 18
Hardness Rating: 27.0 rockwell c minimum and 33.0 rockwell c maximum
Nominal Thread Size: 0.625 inches
Material: steel overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec single treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-826-2893	No Name Available	01/01/1960
5310-01-484-3202	No Name Available	07/01/2001

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
5310PL0150625	Extended Washer Self-Locking Nut
EWN22-10	Extended Washer Self-Locking Nut
EWN22-1018	Extended Washer Self-Locking Nut
K636197-11	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-857-3392?

The FSCG of the NSN 5310-00-857-3392 is 5310

Does the NSN 5310-00-857-3392 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-857-3392 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 5310-00-857-3392 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-857-3392 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 5310-00-857-3392 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962