655164

View detailed technical data, stock status, and sourcing information for: 655164
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-403-3478

Item Name Code

01869

Assigment Date

06/24/1970 (56 years ago)

A washer, round in shape, and having a centrally located hole. Its two flat parallel bearing surfaces are divided or cut along the radius, leaving a cleft, fissure, or cutaway portion across the rim whch extends from the outer circumference to the washer hole but which is never as large as the washer hole diameter. Excludes:washer (1), lock.

0.190 inches minimum and 0.210 inches maximum external straight key width, 6 external key quantity, 4.930 inches minimum and 4.950 inches maximum overall distance including keys, 4.320 inches minimum and 4.340 inches maximum hole diameter, 4.630 inches minimum and 4.650 inches maximum outside 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: 4.320 inches minimum and 4.340 inches maximum
Outside Diameter: 4.630 inches minimum and 4.650 inches maximum
External Straight Key Width: 0.190 inches minimum and 0.210 inches maximum
Overall Distance Including Keys: 4.930 inches minimum and 4.950 inches maximum
External Key Quantity: 6
Material Thickness: 0.045 inches minimum and 0.055 inches maximum
Material: steel overall
Material Document And Classification: ams5040 assn std all material responses or ams5042 assn std all material responses overall
Style Designator: key

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
655164	Key Washer

FAQs

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

What is the FSCG of the NSN 5310-00-403-3478?

The FSCG of the NSN 5310-00-403-3478 is 5310

Does NSN 5310-00-403-3478 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 5310-00-403-3478 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-403-3478 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 5310-00-403-3478 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Wed, Jun 24, 1970