580R521H05

View detailed technical data, stock status, and sourcing information for: 580R521H05
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-143-6208

Item Name Code

05275

Assigment Date

10/14/1968 (57 years ago)

A nut internally threaded from one end, and completely enclosed on the opposite end. The outer periphery parallel to the threaded axis may be square, cylindrical, hexagonal, octagonal, dodecagonal or the like and taper to a cone or dome shape on the closed end. An integral feature is incorporated for locking on the threads of a mating memeber. Excludes:nut (1), stamped.

right-hand thread direction, cap nut style, prevailing torque with nonmetallic insert locking feature, 0.337 inches nominal nut height, 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 with nonmetallic insert
Nut Style: cap
Nut Height: 0.337 inches nominal
Width Across Flats: 0.365 inches minimum and 0.377 inches maximum
Temp Rating: 250.0 fahrenheit nominal
Thread Series: unc
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.164 inches
Bearing Surface Type: chamfered
Material: plastic polyamide (nylon) locking insert
Material: steel nut
Surface Treatment: cadmium overall except insert
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall except insert

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
580R521H05	Cap Self-Locking Nut
F22K1-82	Cap Self-Locking Nut
P35675	Cap Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-143-6208?

The FSCG of the NSN 5310-00-143-6208 is 5310

Does the NSN 5310-00-143-6208 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-143-6208 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 5310-00-143-6208 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-143-6208 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 5310-00-143-6208 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Mon, Oct 14, 1968