PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40L-3150PSIValve,relief,pressure and Temper

Watts Regulator Company · NSN 4820-00-913-3115 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-913-3115 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-913-3115. Primary manufacturer part number: 40L-3150PSI.
Features
  • Valve,relief,pressure and Temper — FSC 4820
  • Temp Adjustability: NOT ADJUSTABLE
  • Temp Control Device Type: THERMOSTATIC
  • Furnished Items: EMERGENCY OPENING DEVICE
  • Temp Rating: 210.0 FAHRENHEIT DEGF
  • End Connection Quantity: 2
  • Second End Style Designator: PLAIN
  • Second End Nominal Pipe Size Accommodated: 0.750 INCHES IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Plastic Silicone Flow Control Device construction
General Description

The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-00-913-3115, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Watts Regulator Company. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-913-3115
Primary Part Number40L-3150PSI
Item NameValve,relief,pressure and Temper
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerWatts Regulator Company
StatusACTIVE
Temp AdjustabilityNOT ADJUSTABLE
Temp Control Device TypeTHERMOSTATIC
Furnished ItemsEMERGENCY OPENING DEVICE
Temp Rating210.0 FAHRENHEIT DEGF
End Connection Quantity2
Second End Style DesignatorPLAIN
Second End Nominal Pipe Size Accommodated0.750 INCHES IN
Media for Which DesignedWATER, FRESH
Second End Relationship with First EndNOT IDENTICAL
Adjustable Pressure Range75.0 TO 150.0 CAMERA MOUNT
Second End Thread DirectionRIGHT-HAND
Body StyleANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS
Second End Connection TypeTHREADED EXTERNAL PIPE
MaterialPLASTIC SILICONE FLOW CONTROL DEVICE
First End Thread DirectionRIGHT-HAND
MaterialSTEEL CORROSION RESISTING STEM
MaterialCOPPER ALLOY BODY
Flow Control DevicePOPPET
MaterialCOPPER ALLOY SEAT
First End Nominal Pipe Size Accommodated0.750 INCHES IN
First End Connection TypeTHREADED INTERNAL PIPE
First End Style DesignatorPLAIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6220-00-299-682108242X INTERCHANGEABLE
Stop Light-Taillight,vehicular
Abm Equipment, Llc
5961-00-608-0501 INTERCHANGEABLE
Semiconductor Device,diode
4820-00-632-152118C-402-27 INTERCHANGEABLE
Valve,relief,pressure and Temper
Aalberts Integrated Piping Systems Americas, Inc.
4240-01-421-3662SPEC40L INTERCHANGEABLE
Mask,air Line
E. D. Bullard Company Dba Ed Bullard Co
1005-01-560-601940L INTERCHANGEABLE
Sight,grenade Launcher
Samson Mfg Co
Cross-Reference Index
Part NumberManufacturer
40L-3150PSI PRIMARY Watts Regulator Company (USA)
40L Watts Regulator Company (USA)
Related Parts
6220-00-299-6821INTERCHANGEABLE
STOP LIGHT-TAILLIGHT,VEHICULAR
08242X
5961-00-608-0501INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
4820-00-632-1521INTERCHANGEABLE
VALVE,RELIEF,PRESSURE AND TEMPER
18C-402-27
4240-01-421-3662INTERCHANGEABLE
MASK,AIR LINE
SPEC40L
1005-01-560-6019INTERCHANGEABLE
SIGHT,GRENADE LAUNCHER
40L

Frequently Asked Questions

What is NSN 4820-00-913-3115?

NSN 4820-00-913-3115 is a Valve,relief,pressure and Temper, manufactured by Watts Regulator Company, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-913-3115?

NSN 4820-00-913-3115 has 2 cross-referenced part numbers: 40L-3150PSI (Watts Regulator Company), 40L (Watts Regulator Company).

What NSN replaces 4820-00-913-3115?

There are 5 known substitutes for 4820-00-913-3115: 6220-00-299-6821, 5961-00-608-0501, 4820-00-632-1521 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40L-3150PSI?

Key specifications for 40L-3150PSI: Temp Adjustability: NOT ADJUSTABLE; Temp Control Device Type: THERMOSTATIC; Furnished Items: EMERGENCY OPENING DEVICE; Temp Rating: 210.0 FAHRENHEIT DEGF. 23 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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