The Valve,regulating,system Pressure, cataloged under National Stock Number 4820-01-319-5430, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Knorr Bremse (uk) Ltd. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-319-5430 |
| Primary Part Number | KY1671/1 |
| Item Name | Valve,regulating,system Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Knorr Bremse (uk) Ltd |
| Status | ACTIVE |
| Second End Relationship with First End | NOT IDENTICAL |
| First End Style Designator | PLAIN |
| End Connection Quantity | 2 |
| Second End Style Designator | PLAIN |
| First End Connection Type | THREADED INTERNAL PIPE |
| Media for Which Designed | HYDROCARBON FUELS AND OILS |
| Second End Connection Type | THREADED INTERNAL PIPE |
| Thread Size and Series/type Designator | 1/2-14 NPTF FIRST END |
| Thread Size and Series/type Designator | 3/8-18 NPTF SECOND END |
| 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 |
|---|---|
| KY1671/1 | Knorr Bremse (uk) Ltd (GBR) |
| Reference | Meaning |
|---|---|
| B761-013-000 | 3/9 Design control — primary reference Lansing Inc |
NSN 4820-01-319-5430 is a Valve,regulating,system Pressure, manufactured by Knorr Bremse (uk) Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-319-5430 has 1 manufacturer part number on file: KY1671/1 (Knorr Bremse (uk) Ltd).
Key specifications for KY1671/1: Second End Relationship with First End: NOT IDENTICAL; First End Style Designator: PLAIN; End Connection Quantity: 2; Second End Style Designator: PLAIN. 9 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.