MS20144C6

View detailed technical data, stock status, and sourcing information for: MS20144C6
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-857-4959

Item Name Code

05277

Assigment Date

01/01/1962 (64 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.

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

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: 0.318 inches minimum and 0.469 inches maximum
End Item Identification: rg-33 auv mrap; mrap buffalo mk2a2; multiple launch rocket system (mlrs)
Width Across Flats: 0.553 inches minimum and 0.564 inches maximum
Temp Rating: 250.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 24
Nominal Thread Size: 0.375 inches
Countersink Angle: 88.0 degrees nominal nut
Bearing Surface Type: chamfered or washer faced
Bearing Surface Finish: 125.0 microinches
Special Features: .
Material: steel comp 302 or steel comp 303 or steel comp 304 nut
Material Document And Classification: ams 5688 assn std 1st material response or ams 5630 assn std 2nd material response or ams 5647 assn std 3rd material response nut
Surface Treatment: passivate overall except insert
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall except insert

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-058-7264	No Name Available	10/01/1984
2010-00-706-2448	No Name Available	07/16/1972
5310-00-834-8212	No Name Available	11/24/2003
5310-01-576-0602	No Name Available	02/01/2013

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
002-003645-007	Hexagon Self-Locking Nut
48797-1	Hexagon Self-Locking Nut
5310PL0946483	Hexagon Self-Locking Nut
79NE-064	Hexagon Self-Locking Nut
MS20144C6	Hexagon Self-Locking Nut
MS21044-C6	Hexagon Self-Locking Nut
MS21044C6	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-857-4959?

The FSCG of the NSN 5310-00-857-4959 is 5310

Does the NSN 5310-00-857-4959 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-857-4959 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 5310-00-857-4959 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-857-4959 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 5310-00-857-4959 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962