R439PC4-0

View detailed technical data, stock status, and sourcing information for: R439PC4-0
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Federal Supply Group

Pumps and Compressors

Federal Supply Classification

4320 Power and Hand Pumps

National Stock Number

4320-00-534-5276

Item Name Code

22534

Assigment Date

01/01/1963 (63 years ago)

An item of single or multipiece construction, circular in shape and usually of h-shape cross section, designed for insertion between packing rings on pump shafts. The web of the ring is perforated to permit flow of liquid to the shaft and packing for sealing, cooling and lubricating purposes.

0.141 inches nominal left side flange thickness, 3.475 inches nominal body inside diameter, 1.065 inches nominal overall length, internal flange w/external locking flange body style, 4.149 inches nominal body outside 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: internal flange w/external locking flange
Overall Length: 1.065 inches nominal
Body Outside Diameter: 4.149 inches nominal
Body Inside Diameter: 3.475 inches nominal
Left Side Flange Thickness: 0.141 inches nominal
Right Side Flange Thickness: 0.184 inches nominal
Distance Between Flanges: 0.495 inches nominal
End To Flange Distance: 0.900 inches nominal
Internal Flange Inside Diameter: 0.274 inches nominal
Internal Flange Outside Diameter: 3.110 inches nominal
Internal Flange Width: 2.759 inches nominal
Internal Flange Lip Width: 0.250 inches nominal
Smallest External Anchor Flange Radius: 1.821 inches nominal
Largest External Anchor Flange Radius: 2.105 inches nominal
Distance Below Centerline: 0.180 inches nominal
Distance From End: 0.408 inches nominal
Corner Shape: square all corners
Special Features: groove 0.188 in. w,0.128 in. deep,o-ring furnished
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
C148A	Wearing Ring
R439PC4-0	Wearing Ring
R448PC4-0	Wearing Ring

FAQs

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

What is the FSCG of the NSN 4320-00-534-5276?

The FSCG of the NSN 4320-00-534-5276 is 4320

Does the NSN 4320-00-534-5276 have a Schedule B code assigned?

Yes, the Schedule B code is 8413919520

Does NSN 4320-00-534-5276 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 4320-00-534-5276 contain precious materials?

Precious metal content is unknown

Does NSN 4320-00-534-5276 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 4320-00-534-5276 was assigned to the Federal Catalog?

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