The Indicator,valve Opening, cataloged under National Stock Number 4810-01-500-2745, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Fisher Controls Co Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4810-01-500-2745 |
| Primary Part Number | 28A8490X012 |
| Item Name | Indicator,valve Opening |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Fisher Controls Co Inc |
| Status | ACTIVE |
| Material | STEEL CORROSION RESISTING CASE |
| 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 |
|---|---|
| 58B5036 FIND NO. 129 | Fisher Controls Co Inc (USA) |
| 28A8490X012 PRIMARY | Fisher Controls Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 58B5036 | D/9 Drawing number reference only Fisher Controls Co Inc |
NSN 4810-01-500-2745 is a Indicator,valve Opening, manufactured by Fisher Controls Co Inc, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-500-2745 has 2 manufacturer part numbers on file: 58B5036 FIND NO. 129 (Fisher Controls Co Inc), 28A8490X012 (Fisher Controls Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 5930-01-508-2695. Verify interchangeability with system specifications before substitution.
Key specifications for 28A8490X012: Special Features: NHA VALVE ASSY,BL; Material: STEEL CORROSION RESISTING CASE. 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.