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4820-00-345-8508

Find complete technical information, availability, and procurement data for: 4820-00-345-8508

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4820-00-345-8508
Federal Supply Group
Valves
Federal Supply Classification
4820 Nonpowered Valves
National Stock Number
4820-00-345-8508
Item Name Code
05493
Assigment Date
01/20/1974 (52 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.

straight thru body style, crimped first end style designator, not identical second end relationship with first end, 0.500 inches nominal first end outside diameter tube accommodated, unthreaded internal tube first end connection type

Product Characteristics

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

Body Style
straight thru
First End Connection Type
unthreaded internal tube
First End Style Designator
crimped
First End Outside Diameter Tube Accommodated
0.500 inches nominal
Second End Relationship With First End
not identical
Second End Connection Type
unthreaded internal tube
Second End Style Designator
crimped
Second End Outside Diameter Tube Accommodated
0.375 inches nominal
Flow Control Device
stem and integral disk
End Connection Quantity
2
Capillary Tube Length
60.000 inches nominal
Bulb Length
3.500 inches nominal
Bulb Diameter
0.500 inches nominal
Valve Expansion Control Type
pressure
Valve Pressure Limiting Device
not included
Bulb Mounting Method
clamp
Valve Equalizer Location
external
Valve Equalizer Connection Type
solder tube
Valve Equalizer Connection Diameter
0.250 inches nominal
Material
copper alloy body
Surface Treatment
anodize outside

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
068H6200 Expansion Valve
68263K4 Expansion Valve
EA06HB350 Expansion Valve

FAQs

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

What is the FSCG of the NSN 4820-00-345-8508?
The FSCG of the NSN 4820-00-345-8508 is 4820
Does the NSN 4820-00-345-8508 have a Schedule B code assigned?
Yes, the Schedule B code is 8481809050
Does NSN 4820-00-345-8508 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 4820-00-345-8508 contain precious materials?
Precious metal content is unknown
Does NSN 4820-00-345-8508 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 4820-00-345-8508 was assigned to the Federal Catalog?
It was assigned 52 years ago, on Sun, Jan 20, 1974

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