BBSAA05SEE

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-01-311-4975

Item Name Code

05488

Assigment Date

11/29/1989 (36 years ago)

A valve designed to automatically maintain within close limits a predetermined outlet pressure which may be adjustable within a specified range regardless of the higher fluctuating or constant inlet pressure. It is designed for use with compressed gas(es) and various liquids and may include gauges. It may be inline or cartridge (manifold) design. Excludes:regulator, pressure, medical gas administration apparatus; regulator, oxygen, barometric continuous flow; regulator, oxygen demand; regulator, oxygen diluter demand; and valve(1), fluid pressure regulating, aircraft.

union bonnet attachment method, threaded renewable seat ring type, spring disk loading method, disk flow control device, inside spring bonnet type

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: inside spring
Bonnet Attachment Method: union
Disk Loading Method: spring
Renewable Seat Ring Type: threaded
Maximum Operating Temp: 150.0 fahrenheit single response
End Item Identification: emory s. land class as
Connection Style: socket (tube) all ends
Valve Operation Method: automatic
Connection Type: unthreaded internal tube all ends
Adjustable Pressure Range: +59.0 to 70.0 pounds per square inch
Maximum Operating Pressure: 400.0 pounds per square inch single response
Nominal Outside Diameter Tube Accommodated: 1.000 inches all ends
Material: copper alloy body
Material: nickel alloy flow control device
Material: nickel alloy stem
Material: steel seat
Media For Which Designed: water, salt 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
BBSAA05SEE	Safety Relief Valve
DL0-40EB2	Safety Relief Valve
NMP-1109 OPT L	Safety Relief Valve
NMP1109DLO-40EB2-59T70PSI	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-01-311-4975?

The FSCG of the NSN 4820-01-311-4975 is 4820

Does the NSN 4820-01-311-4975 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-01-311-4975 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 4820-01-311-4975 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-01-311-4975 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 4820-01-311-4975 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Wed, Nov 29, 1989