The Head,valve, cataloged under National Stock Number 4820-01-511-8141, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-511-8141 |
| Item Name | Head,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| 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 |
|---|---|
| FIG 7-38-4 | 5/9 Secondary reference U.S. Government activity |
| 527-001-900 | C/1 Advisory reference — outside the item-of-supply concept Siemens Energy, Inc. Dba Dresser-Rand |
| FIG 7-38-4 | C/1 Advisory reference — outside the item-of-supply concept Siemens Energy, Inc. Dba Dresser-Rand |
| 527-001-900 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4820-01-511-8141 is a Head,valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-511-8141: Special Features: PART NAME ASSIGNED BY CONTROLLING AGENCY IS BLOCK END; End Item Identification: LUBRICATOR, HPAC; VIRGINIA CLASS SSN. 0 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.