C21046U6-18

View detailed technical data, stock status, and sourcing information for: C21046U6-18
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-687-2136

Item Name Code

15895

Assigment Date

03/23/2020 (6 years ago)

An item of various configuration that is an integral member of the airframe structure. It is specifically designed for the purpose of maintaining, positioning, joining, and strengthening the aircraft structure. It may include holes for mounting purposes or to form an assembly.

round nut style, free-running all metal design locking feature, 0.5181 inches minimum and 0.5208 inches maximum nut diameter, right-hand thread direction, 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: free-running all metal design
Nut Style: round
Nut Diameter: 0.5181 inches minimum and 0.5208 inches maximum
Nut Thickness: 1.698 inches minimum and 1.757 inches maximum
End Item Identification: f16 aircraft
Thread Series: unjf
Thread Quantity Per Inch: 24
Nominal Thread Size: 0.3750 inches
Material: steel comp 304 nut
Material Document And Classification: qq-s-763 fed spec single material response nut
Surface Treatment: passivate nut
Surface Treatment Document And Classification: astm-a-967 assn std single treatment response nut

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
C21046U6-18	Round Self-Locking Nut
TLDNG-6-3-S-18	Round Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-687-2136?

The FSCG of the NSN 5310-01-687-2136 is 5310

Does the NSN 5310-01-687-2136 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-687-2136 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 5310-01-687-2136 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-687-2136 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 5310-01-687-2136 was assigned to the Federal Catalog?

It was assigned 6 years ago, on Mon, Mar 23, 2020