NSN 4820-01-440-7751

Safety Relief Valve

FSC: 4820 NIIN: 014407751

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Product Characteristics

NSN:

4820014407751

Demilitarization:

INC:

05488

Shelf Life:

N/A

Flow Control Device:

Disk

Disk Loading Method:

Spring

Bolt Hole Quantity:

4 all ends

Maximum Operating Temp:

150.0 degrees fahrenheit single response

End Application:

Nimitz class cvn

Valve Operation Method:

Automatic

Flange Shape:

Round with holes all ends

Connection Type:

Flange all ends

Valve Size:

1.500 inches

Adjustable Pressure Range:

+20.0/+24.0 pounds per square inch

Maximum Operating Pressure:

225.0 pounds per square inch single response

Outside Diameter:

5.000 inches all ends

Thickness:

0.440 inches all ends

First Connection Face To Centerline Distance:

4.750 inches

Bolt Hole Diameter:

0.620 inches all ends

Second Connection Face To Centerline Distance:

4.750 inches

Bolt Circle Diameter:

3.875 inches all ends

Flange Face Design:

Plain all ends

Part Name Assigned By Controlling Agency:

1 1/2in relief valve, type 1741-t

Material:

Nickel alloy flow control device

Material Specification:

Qq-n-288 federal specification single material response seat

Style Designator:

Err-090

Demand History (Solicitations)

Solicitation	Qty	End Date	Purchase Request	Small Business
SPE7M122T742S	2	09/23/2022	0095867958	0%
SPE7M122T742S	2	09/23/2022	0095867959	0%
SPE7MC20T4128	1	02/03/2020	0083269105	0%
SPE7MC20T4128	1	02/03/2020	0083269105	0%
SPE7M020T2979	1	12/30/2019	0082881486	0%
SPE7M020T2979	1	12/30/2019	0082881486	0%
SPE7M020T2979	1	12/30/2019	0082881486	0%
SPE7M020T2979	1	12/30/2019	0082881486	0%
SPE7M020T2979	1	12/30/2019	0082881486	0%
SPE7M020T2979	1	12/30/2019	0082881486	0%
SPE7M020T2979	1	12/30/2019	0082881486	0%
SPE7M020T2979	1	12/30/2019	0082881486	0%
SPE7M020T2979	1	12/30/2019	0082881486	0%
SPE7M020T2979	1	12/30/2019	0082881486	0%
SPE7M020T2979	1	12/30/2019	0082881486	0%
SPE7M020T2979	1	12/30/2019	0082881486	0%
SPE7M020T2979	1	12/30/2019	0082881486	0%
SPE7MC19T5739	1	02/19/2019	0078222106	0%
SPE7MC18T7496	1	03/26/2018	0073419427	0%