5310-00-326-4918

Find complete technical information, availability, and procurement data for: 5310-00-326-4918
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-326-4918

Item Name Code

29730

Assigment Date

12/03/1973 (52 years ago)

prevailing torque all metal design locking feature, right-hand thread direction, 0.277 inches minimum and 0.287 inches maximum nut counterbore diameter, 0.425 inches maximum washer outside diameter, 3b thread class

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: 0.425 inches maximum
Counterbore Diameter: 0.277 inches minimum and 0.287 inches maximum nut
Lubrication: dry film lubricant
Overall Height: 0.230 inches maximum
Nut Style: hexagon
Nut Counterbore Depth: 0.072 inches minimum and 0.082 inches maximum nut
Width Across Flats: 0.274 inches minimum and 0.284 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 28
Hardness Rating: 39.0 rockwell c minimum and 43.0 rockwell c maximum
Nominal Thread Size: 0.250 inches
Material: steel comp 8740 overall
Material Document And Classification: mil-s-6049 mil spec single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 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
202-16117-4	Extended Washer Self-Locking Nut
H530C4	Extended Washer Self-Locking Nut
KFN530C4	Extended Washer Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-326-4918?

The FSCG of the NSN 5310-00-326-4918 is 5310

Does the NSN 5310-00-326-4918 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-326-4918 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 5310-00-326-4918 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-326-4918 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 5310-00-326-4918 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Mon, Dec 3, 1973