MS21045-08

View detailed technical data, stock status, and sourcing information for: MS21045-08
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-889-2549

Item Name Code

05277

Assigment Date

01/01/1960 (66 years ago)

3b thread class, right-hand thread direction, hexagon nut style, soluble lubricant lubrication, prevailing torque all metal design locking feature

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: 0.219 inches minimum and 0.250 inches maximum
Width Across Flats: 0.336 inches minimum and 0.345 inches maximum
Temp Rating: 450.0 fahrenheit nominal
Thread Series: unjc
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.164 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Below is a list of NSNs that have been officially superseded by this NSN: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
5310-00-576-2686	No Name Available	05/17/1988

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
16287-3	Hexagon Self-Locking Nut
200-SA13	Hexagon Self-Locking Nut
21FA832	Hexagon Self-Locking Nut
2300753	Hexagon Self-Locking Nut
27FH-832	Hexagon Self-Locking Nut
5310008892549	Hexagon Self-Locking Nut
5310PL1805843	Hexagon Self-Locking Nut
B4525-320-49	Hexagon Self-Locking Nut
F1801-82	Hexagon Self-Locking Nut
H55-08CW	Hexagon Self-Locking Nut
MS21045-08	Hexagon Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-889-2549?

The FSCG of the NSN 5310-00-889-2549 is 5310

Does the NSN 5310-00-889-2549 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-889-2549 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 5310-00-889-2549 contain precious materials?

Item does not contain precious metal.

Does NSN 5310-00-889-2549 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 5310-00-889-2549 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960