4820-01-378-7557

Find complete technical information, availability, and procurement data for: 4820-01-378-7557
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-378-7557

Item Name Code

05488

Assigment Date

08/21/1993 (32 years ago)

An individual respiratory protective device, designed to remove organic vapors, solid particles and/or light concentrations of poisonous gas if with chemical cartridge(s). It may include a hood designed to cover user's head.

outside screw-yoke bonnet type, disk flow control device, bolted bonnet attachment method, 150.0 fahrenheit single response maximum operating temp, spring disk loading method

Product Characteristics

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

Flow Control Device: disk
Bonnet Type: outside screw-yoke
Bonnet Attachment Method: bolted
Disk Loading Method: spring
Maximum Operating Temp: 150.0 fahrenheit single response
End Item Identification: nimitz class cvn
Connection Style: socket with brazing ring (tube) all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal tube all ends
Adjustable Pressure Range: +20.0 to 24.0 pounds per square inch
Maximum Operating Pressure: 50.0 pounds per square inch single response
Nominal Outside Diameter Tube Accommodated: 0.750 inches all ends
Material: copper alloy body
Material: nickel alloy stem
Media For Which Designed: water-oil-gas single response
Style Designator: angle

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
20187DM41M CDS-16323	Safety Relief Valve
BAMAA03MDD	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-378-7557?

The FSCG of the NSN 4820-01-378-7557 is 4820

Does the NSN 4820-01-378-7557 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-378-7557 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 4820-01-378-7557 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-378-7557 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 4820-01-378-7557 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Sat, Aug 21, 1993