4320-00-398-6840

Find complete technical information, availability, and procurement data for: 4320-00-398-6840
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Federal Supply Group

Pumps and Compressors

Federal Supply Classification

4320 Power and Hand Pumps

National Stock Number

4320-00-398-6840

Item Name Code

10255

Assigment Date

01/01/1961 (65 years ago)

A single or multiple piece item without ball, plain or roller bearing(s). It is designed to meet various or specific conditions of mounting. For items with bearings, see bearing unit, ball; bearing unit, plain; and bearing unit, roller.

0.252 inches nominal step length, 1.688 inches nominal inside diameter, 0.500 inches nominal material thickness, 3.250 inches nominal outside diameter, 3.000 inches nominal step diameter

Product Characteristics

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

Inside Diameter: 1.688 inches nominal
Step Diameter: 3.000 inches nominal
Step Length: 0.252 inches nominal
Outside Diameter: 3.250 inches nominal
Material Thickness: 0.500 inches nominal
Mounting Hole Diameter: 1.688 inches nominal
Mounting Hole Quantity: 1
Mounting Hole Type: plain
Material: steel
Style Designator: round, stepped

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
G-10190	Dirt and Liquid Deflector
G10190PC27	Dirt and Liquid Deflector
H588AG	Dirt and Liquid Deflector

FAQs

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

What is the FSCG of the NSN 4320-00-398-6840?

The FSCG of the NSN 4320-00-398-6840 is 4320

Does the NSN 4320-00-398-6840 have a Schedule B code assigned?

Yes, the Schedule B code is 8413919520

Does NSN 4320-00-398-6840 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 4320-00-398-6840 contain precious materials?

Precious metal content is unknown

Does NSN 4320-00-398-6840 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 4320-00-398-6840 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961