The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-007-5158, 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 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4820-01-007-5158 |
| Primary Part Number | 100XL-3/4-125 PSI |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Watts Regulator Company |
| Status | CANCELLED |
| Flow Control Device | DISK, FLAT |
| Opening Pressure Setting | ERR-060 |
| First End Style Designator | PLAIN |
| First End Connection Type | THREADED INTERNAL PIPE |
| Second End Style Designator | PLAIN |
| Second End Nominal Pipe Size Accommodated | 0.750 INCHES IN |
| Bulb Diameter | 0.040 INCHES NOMINAL IN |
| Second End Relationship with First End | NOT IDENTICAL |
| End Connection Quantity | 2 |
| Temp Rating | 210.0 FAHRENHEIT DEGF |
| Second End Connection Type | THREADED EXTERNAL PIPE |
| Temp Adjustability | NOT ADJUSTABLE |
| First End Nominal Pipe Size Accommodated | 0.500 INCHES IN |
| Second End Thread Direction | RIGHT-HAND |
| First End Thread Direction | RIGHT-HAND |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Bulb Length | 1.375 INCHES NOMINAL IN |
| Media for Which Designed | WATER, FRESH |
| Material | COPPER ALLOY BODY |
| Temp Control Device Type | THERMOSTATIC |
| Body Style | ANGLE GIVE "ADQM" AND "ADQN" ONLY IF FLANGED ONE OR TWO ENDS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 100XL-3/4-125PS | Watts Regulator Company (USA) |
| 540-3-4 | Watts Regulator Company (USA) |
| 100XL-3/4-125 PSI PRIMARY | Watts Regulator Company (USA) |
| A540-3-4 | Watts Regulator Company (USA) |
NSN 4820-01-007-5158 is a Valve,relief,pressure and Temper, manufactured by Watts Regulator Company, classified under FSC 4820 (No Item Name Available). Status: cancelled.
NSN 4820-01-007-5158 has 4 cross-referenced part numbers: 100XL-3/4-125PS (Watts Regulator Company), 540-3-4 (Watts Regulator Company), 100XL-3/4-125 PSI (Watts Regulator Company), A540-3-4 (Watts Regulator Company).
There are 7 known substitutes for 4820-01-007-5158: 6680-00-551-2262, 5962-01-076-5901, 4930-01-185-8302 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 100XL-3/4-125 PSI: Flow Control Device: DISK, FLAT; Opening Pressure Setting: ERR-060; First End Style Designator: PLAIN; First End Connection Type: THREADED INTERNAL PIPE. 21 total characteristics are documented in the Federal Logistics Information System.
NSN 4820-01-007-5158 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.