4320-00-540-1551

Find complete technical information, availability, and procurement data for: 4320-00-540-1551
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Federal Supply Group

Pumps and Compressors

Federal Supply Classification

4320 Power and Hand Pumps

National Stock Number

4320-00-540-1551

Item Name Code

10255

Assigment Date

01/01/1961 (65 years ago)

1.500 inches nominal step diameter, 1.001 inches minimum and 1.002 inches maximum inside diameter, 0.438 inches nominal step length, 2b thread class, right-hand thread direction

Product Characteristics

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

Thread Class: 2b
Thread Direction: right-hand
Inside Diameter: 1.001 inches minimum and 1.002 inches maximum
Step Diameter: 1.500 inches nominal
Step Length: 0.438 inches nominal
Outside Diameter: 2.500 inches nominal
Material Thickness: 0.625 inches nominal
Mounting Hole Quantity: 1
Mounting Hole Type: threaded
Special Features: mtg hole located on step at 90.0 deg to bore
Material: copper alloy 435
Style Designator: round, stepped
Thread Size And Series/Type Designator: 0.250-20 unc
Fsc Application Data: centrifugal pump

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
N2441	Dirt and Liquid Deflector

FAQs

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

What is the FSCG of the NSN 4320-00-540-1551?

The FSCG of the NSN 4320-00-540-1551 is 4320

Does the NSN 4320-00-540-1551 have a Schedule B code assigned?

Yes, the Schedule B code is 8413919520

Does NSN 4320-00-540-1551 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 4320-00-540-1551 contain precious materials?

Precious metal content is unknown

Does NSN 4320-00-540-1551 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 4320-00-540-1551 was assigned to the Federal Catalog?

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