The Indicator,valve Opening, cataloged under National Stock Number 4820-01-448-8415, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-448-8415 |
| Primary Part Number | 801-6405342 FIND 26 |
| Item Name | Indicator,valve Opening |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 801-6405342 FIND 26 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 211050348 | 3/2 Design control — primary reference U.S. Government activity |
| 6405342 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-448-8415 is a Indicator,valve Opening, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-448-8415 has 1 manufacturer part number on file: 801-6405342 FIND 26 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-541-6203. Verify interchangeability with system specifications before substitution.
Key specifications for 801-6405342 FIND 26: Special Features: USED W/BALL VALVES,1/4 & 1/2 IN.TOP LOAD-HIGH PRESSURE NITROGEN SERVICE,NAVSEA DWG 801-6405342,REV A IN; End Item Identification: SUBMARINE,SEAWOLF CLASS. 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.