MS21083C14

View detailed technical data, stock status, and sourcing information for: MS21083C14
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-519-6591

Item Name Code

05277

Assigment Date

06/20/1969 (57 years ago)

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes:nut (1), self-locking, cap.

right-hand thread direction, prevailing torque with nonmetallic insert locking feature, hexagon nut style, soluble lubricant lubrication, 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
Lubrication: soluble lubricant
Nut Style: hexagon
Nut Height: 0.485 inches maximum
Width Across Flats: 1.239 inches minimum and 1.252 inches maximum
Temp Rating: 250.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 14
Nominal Thread Size: 0.875 inches
Countersink Angle: 88.0 degrees nominal nut
Bearing Surface Type: chamfered
Bearing Surface Finish: 125.0 microinches
Material: plastic polyamide (nylon) locking insert
Material: steel corrosion resisting nut
Surface Treatment: passivate 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
002-004048-013	Hexagon Self-Locking Nut
L79NTE-1414	Hexagon Self-Locking Nut
MS21083C14	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-519-6591?

The FSCG of the NSN 5310-00-519-6591 is 5310

Does the NSN 5310-00-519-6591 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-519-6591 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 5310-00-519-6591 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-519-6591 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 5310-00-519-6591 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Jun 20, 1969