The Plate,adapter,valve, cataloged under National Stock Number 4820-01-185-9544, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-185-9544 |
| Item Name | Plate,adapter,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| General Characteristics Item Description | OUTSIDE DIAMETER 4.56O IN.;BOLT HOLES 8,EQUALLYSPACED 0.468 DIAMETER THRU;CENTER HOLE 0.250 IN. DIAMETER THRU;RAISED FACE TOP1.990 IN.DIAMETER WITH ONEHOLE 0.250 IN. DIAMETER TO1.687 IN. DEEP 1.562 IN. FROM CENTER HOLE EQUALLY SPACED BETWEEN TWO BOLT HOLES;BOTTOM RAISED FACE 3.060IN. DIAMETER BY 0.125 THICK IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 50M-130 | 3/9 Design control — primary reference Metrex Valve Corp. Dba Metrex Valve Corp |
| N-7052 | 5/9 Secondary reference Metrex Valve Corp. Dba Metrex Valve Corp |
NSN 4820-01-185-9544 is a Plate,adapter,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-185-9544: General Characteristics Item Description: OUTSIDE DIAMETER 4.56O IN.;BOLT HOLES 8,EQUALLYSPACED 0.468 DIAMETER THRU;CENTER HOLE 0.250 IN. DIAMETER THRU;RAISED FACE TOP1.990 IN.DIAMETER WITH ONEHOLE 0.250 IN. DIAMETER TO1.687 IN. DEEP 1.562 IN. FROM CENTER HOLE EQUALLY SPACED BETWEEN TWO BOLT HOLES;BOTTOM RAISED FACE 3.060IN. DIAMETER BY 0.125 THICK IN. 1 specification is 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.