MS21045-3

View detailed technical data, stock status, and sourcing information for: MS21045-3
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-061-7326

Item Name Code

05277

Assigment Date

01/01/1963 (63 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.

soluble lubricant lubrication, prevailing torque all metal design locking feature, 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 all metal design
Lubrication: soluble lubricant
Nut Style: hexagon
Nut Height: 0.208 inches minimum and 0.250 inches maximum
Width Across Flats: 0.367 inches minimum and 0.376 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjf
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.190 inches
Countersink Angle: 88.0 degrees nominal nut
Bearing Surface Type: chamfered or washer faced
Bearing Surface Finish: 125.0 microinches
Material: steel overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-141-3632	No Name Available	04/23/1980
5310-00-208-5869	No Name Available	05/23/2022
5310-00-285-7082	No Name Available	07/01/1986
5310-00-685-0414	No Name Available	11/01/1977
5310-00-826-9805	No Name Available	10/01/1982
5310-00-997-3073	No Name Available	07/05/1967

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
0496-017	Hexagon Self-Locking Nut
10116531	Hexagon Self-Locking Nut
12FS1032	Hexagon Self-Locking Nut
22FH1032	Hexagon Self-Locking Nut
27FH-1032	Hexagon Self-Locking Nut
307885	Hexagon Self-Locking Nut
3X92215	Hexagon Self-Locking Nut
5310000617326	Hexagon Self-Locking Nut
5310PL0962728	Hexagon Self-Locking Nut
5310PL1801038	Hexagon Self-Locking Nut
802458	Hexagon Self-Locking Nut
858802-00	Hexagon Self-Locking Nut
8837614	Hexagon Self-Locking Nut
8837619-1	Hexagon Self-Locking Nut
AN363-1032	Hexagon Self-Locking Nut
B4525-321-4	Hexagon Self-Locking Nut
F180-02	Hexagon Self-Locking Nut
H55-3CW	Hexagon Self-Locking Nut
JL10S10328	Hexagon Self-Locking Nut
MS21045-3	Hexagon Self-Locking Nut
YE3179	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-061-7326?

The FSCG of the NSN 5310-00-061-7326 is 5310

Does the NSN 5310-00-061-7326 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-061-7326 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 5310-00-061-7326 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-061-7326 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 5310-00-061-7326 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963