MS21044C18

View detailed technical data, stock status, and sourcing information for: MS21044C18
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-01-357-6233

Item Name Code

05277

Assigment Date

04/28/1992 (34 years ago)

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

prevailing torque with nonmetallic insert locking feature, dry film lubricant lubrication, 3b thread class, hexagon nut style, right-hand thread direction

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: dry film lubricant
Nut Style: hexagon
Nut Height: 1.130 inches minimum and 1.266 inches maximum
Width Across Flats: 1.614 inches minimum and 1.627 inches maximum
Temp Rating: 250.0 fahrenheit maximum
Thread Series: unjf
Thread Quantity Per Inch: 12
Nominal Thread Size: 1.250 inches
Countersink Angle: 88.0 degrees minimum nut
Bearing Surface Type: chamfered or washer faced
Bearing Surface Finish: 125.0 microinches
Material: steel comp 302 or steel comp 303 or steel comp 304 nut
Surface Treatment: passivate nut
Surface Treatment Document And Classification: qq-p-35 fed spec 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
MS21044C18	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-01-357-6233?

The FSCG of the NSN 5310-01-357-6233 is 5310

Does the NSN 5310-01-357-6233 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-01-357-6233 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 5310-01-357-6233 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-01-357-6233 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 5310-01-357-6233 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Tue, Apr 28, 1992