The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-00-451-0263, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-00-451-0263 |
| Primary Part Number | 100XL-4 125PSI |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Watts Regulator Company |
| Status | CANCELLED |
| Second End Style Designator | PLAIN |
| Media for Which Designed | WATER, FRESH |
| First End Thread Series Designator | NPT |
| End Connection Quantity | 2 |
| Temp Control Device Type | THERMOSTATIC |
| First End Connection Type | THREADED INTERNAL PIPE |
| Second End Thread Series Designator | NPT |
| First End Thread Class | 3B |
| Second End Relationship with First End | NOT IDENTICAL |
| Second End Nominal Thread Size | 0.750 INCHES IN |
| Temp Rating | 210.0 FAHRENHEIT DEGF |
| Second End Thread Class | 3A A |
| Body Style | ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS |
| First End Nominal Pipe Size Accommodated | 0.750 INCHES IN |
| Flow Control Device | DISK, FLAT |
| Material | COPPER ALLOY BODY |
| First End Style Designator | PLAIN |
| First End Nominal Thread Size | 0.750 INCHES IN |
| Adjustable Pressure Range | 75.0 TO 150.0 CAMERA MOUNT |
| Second End Nominal Pipe Size Accommodated | 0.750 INCHES IN |
| Furnished Items | TEMPERATURE GAGE AND TEST ATTACHMENT |
| Second End Connection Type | THREADED EXTERNAL PIPE |
| First End Thread Direction | RIGHT-HAND |
| Second End Thread Direction | RIGHT-HAND |
| Temp Adjustability | NOT ADJUSTABLE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 18-402-29 | Aalberts Integrated Piping Systems Americas, Inc. (USA) |
| 17753-10 | The Electric Heater Co Dba Hubbell Electric Heater Co. (USA) |
| 18C-402-29 | Aalberts Integrated Piping Systems Americas, Inc. (USA) |
| A44XL | Watts Regulator Company (USA) |
| 100XL-4 125PSI PRIMARY | Watts Regulator Company (USA) |
| 44XL | Watts Regulator Company (USA) |
NSN 4820-00-451-0263 is a Valve,relief,pressure and Temper, manufactured by Watts Regulator Company, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-00-451-0263 has 6 cross-referenced part numbers: 18-402-29 (Aalberts Integrated Piping Systems Americas, Inc.), 17753-10 (The Electric Heater Co Dba Hubbell Electric Heater Co.), 18C-402-29 (Aalberts Integrated Piping Systems Americas, Inc.), A44XL (Watts Regulator Company), 100XL-4 125PSI (Watts Regulator Company) and 1 more.
There is 1 known substitute for 4820-00-451-0263: 2920-00-816-9844. Verify interchangeability with system specifications before substitution.
Key specifications for 100XL-4 125PSI: Second End Style Designator: PLAIN; Media for Which Designed: WATER, FRESH; First End Thread Series Designator: NPT; End Connection Quantity: 2. 25 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-00-451-0263 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.