255255-2

View detailed technical data, stock status, and sourcing information for: 255255-2
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Federal Supply Group

Pumps and Compressors

Federal Supply Classification

4320 Power and Hand Pumps

National Stock Number

4320-00-218-3322

Item Name Code

22534

Assigment Date

01/01/1963 (63 years ago)

2.470 inches nominal body inside diameter, 0.500 inches nominal overall length, plain body style, 4.000 inches minimum and 4.001 inches maximum body outside diameter, 3.250 inches nominal bolt circle diameter

Product Characteristics

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

Body Style: plain
Overall Length: 0.500 inches nominal
Bolt Circle Diameter: 3.250 inches nominal
Body Outside Diameter: 4.000 inches minimum and 4.001 inches maximum
Body Inside Diameter: 2.470 inches nominal
Unthreaded Mounting Hole Diameter: 0.281 inches nominal
Bolt Hole Quantity: 4
Corner Shape: square all corners
Surface Finish: 125.0 microinches all surfaces
Special Features: mtg holes counterbored 0.438 in. dia and 0.312 in. deep
Material: copper alloy
Material Document And Classification: mil-b-16261,grade 3-canceled mil spec single material response

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4320-00-398-7957	No Name Available	01/01/1963

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
1019P	Wearing Ring
1116P	Wearing Ring
255255-2	Wearing Ring
8459P	Wearing Ring
H255794-9	Wearing Ring
SL5255PC35	Wearing Ring
SL5793PC41	Wearing Ring
SL5794PC41	Wearing Ring
SL6768PC8	Wearing Ring
SL6769PC8	Wearing Ring

FAQs

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

What is the FSCG of the NSN 4320-00-218-3322?

The FSCG of the NSN 4320-00-218-3322 is 4320

Does the NSN 4320-00-218-3322 have a Schedule B code assigned?

Yes, the Schedule B code is 8413919520

Does NSN 4320-00-218-3322 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 4320-00-218-3322 contain precious materials?

Precious metal content is unknown

Does NSN 4320-00-218-3322 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 4320-00-218-3322 was assigned to the Federal Catalog?

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