4320-00-398-6642

Find complete technical information, availability, and procurement data for: 4320-00-398-6642
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Federal Supply Group

Pumps and Compressors

Federal Supply Classification

4320 Power and Hand Pumps

National Stock Number

4320-00-398-6642

Item Name Code

60266

Assigment Date

01/01/1963 (63 years ago)

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

automotive standard split bearing 2 bolt shaft connecting end style, i-section type cross-sectional shape style, 0.750 inches nominal end hole inside diameter, 1.250 inches nominal end thickness, 0.750 inches nominal edge radius

Product Characteristics

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

Cross-Sectional Shape Style: i-section type
Shaft Connecting End Style: automotive standard split bearing 2 bolt
End Thickness: 1.250 inches nominal
Edge Radius: 0.750 inches nominal
End Hole Inside Diameter: 0.750 inches nominal
Piston Connecting End Bearing: included
Bearing Replaceability: replaceable
Piston Connecting End Lubrication Drill Feature: included
Piston Connecting End Lubrication Method: splash
Shaft Connecting End Bearing: not included
Shaft Connecting End Hole Inside Diameter: 1.375 inches nominal
Shaft Connecting End Edge Radius: 1.000 inches nominal
Shaft Connecting End Width: 2.688 inches nominal
Shaft Connecting End Thickness: 1.250 inches nominal
Shaft Connecting End Lubrication Drill Feature: included
Shaft Connecting End Lubrication Method: splash
Center To Center Effective Length: 5.500 inches nominal
Body Width At Piston Connecting End: 0.938 inches nominal
Body Width At Shaft Connecting End: 1.125 inches nominal
Body Thickness At Piston Connecting End: 0.750 inches nominal
Body Thickness At Shaft Connecting End: 0.750 inches nominal
Piston End Connection Style: small engine and automotive standard
Material: copper alloy

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
0020777	Piston Connecting Rod
2716BR	Piston Connecting Rod

FAQs

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

What is the FSCG of the NSN 4320-00-398-6642?

The FSCG of the NSN 4320-00-398-6642 is 4320

Does the NSN 4320-00-398-6642 have a Schedule B code assigned?

Yes, the Schedule B code is 8413919520

Does NSN 4320-00-398-6642 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 4320-00-398-6642 contain precious materials?

Precious metal content is unknown

Does NSN 4320-00-398-6642 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 4320-00-398-6642 was assigned to the Federal Catalog?

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