74049-3

View detailed technical data, stock status, and sourcing information for: 74049-3
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-803-1490

Item Name Code

15933

Assigment Date

01/01/1962 (64 years ago)

34.0 rockwell c minimum and 41.0 rockwell c maximum hardness rating, 0.058 inches minimum and 0.088 inches maximum material thickness, 0.245 inches minimum and 0.255 inches maximum hole diameter, 0.370 inches minimum and 0.380 inches maximum outside diameter, 0.308 inches nominal recess diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Hole Diameter: 0.245 inches minimum and 0.255 inches maximum
Outside Diameter: 0.370 inches minimum and 0.380 inches maximum
Recess Diameter: 0.308 inches nominal
Material Thickness: 0.058 inches minimum and 0.088 inches maximum
Hardness Rating: 34.0 rockwell c minimum and 41.0 rockwell c maximum
Recess Angle: 90.0 degrees nominal
Material: steel overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec single treatment response overall
Style Designator: recessed

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5310-00-913-5490	No Name Available	06/01/1970

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
00648-1	Recessed Washer
2935-0	Recessed Washer
67992W1032	Recessed Washer
74049-3	Recessed Washer
F2935-0	Recessed Washer
GB500A3	Recessed Washer

FAQs

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

What is the FSCG of the NSN 5310-00-803-1490?

The FSCG of the NSN 5310-00-803-1490 is 5310

Does the NSN 5310-00-803-1490 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-803-1490 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 5310-00-803-1490 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-803-1490 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 5310-00-803-1490 was assigned to the Federal Catalog?

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