70189-3S

View detailed technical data, stock status, and sourcing information for: 70189-3S
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-230-7066

Item Name Code

15930

Assigment Date

05/23/1973 (53 years ago)

0.295 inches minimum and 0.305 inches maximum hole diameter, 0.360 inches minimum and 0.390 inches maximum radius, 0.455 inches minimum and 0.465 inches maximum outside diameter, 0.065 inches nominal material thickness, 0.455 inches minimum and 0.465 inches maximum 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: 0.295 inches minimum and 0.305 inches maximum
Radius: 0.360 inches minimum and 0.390 inches maximum
Outside Diameter: 0.455 inches minimum and 0.465 inches maximum
Recess Diameter: 0.455 inches minimum and 0.465 inches maximum
Material Thickness: 0.065 inches nominal
Hardness Rating: 52.0 rockwell c minimum and 56.0 rockwell c maximum
Surface Finish: 32.0 microinches top
Special Features: color black
Material: steel comp h11 or steel comp 8740 or steel comp 4130 overall
Material Document And Classification: ams 6487 assn std 1st material response or mil-s-6049 mil spec 2nd material response or mil-s-6758 mil spec 3rd material response or mil-s-18729 mil spec 3rd material response overall
Surface Treatment: nickel and cadmium overall
Surface Treatment Document And Classification: ams 2416 assn std 1st treatment response and ams 2416 assn std 2nd treatment response overall
Style Designator: concave
Specification/Standard Data: 81205-bacw10ca manufacturers standard

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
70189-3S	Concave Washer
942006-3	Concave Washer
BACW10CA3CCS	Concave Washer
K29913-3S	Concave Washer

FAQs

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

What is the FSCG of the NSN 5310-00-230-7066?

The FSCG of the NSN 5310-00-230-7066 is 5310

Does the NSN 5310-00-230-7066 have a Schedule B code assigned?

Yes, the Schedule B code is 7318220000

Does NSN 5310-00-230-7066 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 5310-00-230-7066 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-230-7066 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 5310-00-230-7066 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Wed, May 23, 1973