The Valve Assembly, cataloged under National Stock Number 4820-01-423-8114, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Zurn Industries Inc Wilkins Regulator Co Div. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-423-8114 |
| Primary Part Number | 975XL-1IN |
| Item Name | Valve Assembly |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Zurn Industries Inc Wilkins Regulator Co Div |
| Status | ACTIVE |
| Valve Quantity | 9 |
| Maximum Operating Temp and Media for Which Designed | 180.0 FAHRENHEIT WATER DEGF |
| Connection Type | THREADED INTERNAL PIPE |
| End Connection Quantity | 2 |
| Nominal Thread Size | 1.000 INCHES IN |
| Body Material | COPPER ALLOY |
| Thread Series Designator | NPT |
| Valve Operation Method | MANUAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 975XL-1IN PRIMARY | Zurn Industries Inc Wilkins Regulator Co Div (USA) |
| 975XL-1.00 | Zurn Industries Inc Wilkins Regulator Co Div (USA) |
NSN 4820-01-423-8114 is a Valve Assembly, manufactured by Zurn Industries Inc Wilkins Regulator Co Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-423-8114 has 2 manufacturer part numbers on file: 975XL-1IN (Zurn Industries Inc Wilkins Regulator Co Div), 975XL-1.00 (Zurn Industries Inc Wilkins Regulator Co Div).
Key specifications for 975XL-1IN: Valve Quantity: 9; Maximum Operating Temp and Media for Which Designed: 180.0 FAHRENHEIT WATER DEGF; Connection Type: THREADED INTERNAL PIPE; End Connection Quantity: 2. 8 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.