The Stem,fluid Valve, cataloged under National Stock Number 4820-01-058-7893, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-058-7893 |
| Primary Part Number | 2620-906X10PC28-1/2IN |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok |
| Status | ACTIVE |
| Valve Type for Which Designed | GLOBE |
| Largest Outside Diameter | 0.365 INCHES NOMINAL IN |
| Stem Actuating End Type | THREADED EXTERNALLY |
| Valve Size for Which Designed | 0.500 INCHES IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| 2620-906X10PC28-1/2IN PRIMARY | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA) |
| 90445-5 | Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA) |
| 845-2110225DPC28 1/2 IN | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2620-906X10PC28-1/2IN | 5/9 Secondary reference U.S. Government activity |
| G90445-5 | 5/9 Secondary reference Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok |
| SS845-2110225 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-058-7893 is a Stem,fluid Valve, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-058-7893 has 3 manufacturer part numbers on file: 2620-906X10PC28-1/2IN (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok), 90445-5 (Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok), 845-2110225DPC28 1/2 IN (Naval Sea Systems Command).
5 possible matches (shared part number, not a government interchangeability claim): 4730-01-058-7894, 5365-01-313-2398, 5325-01-612-2465. Verify interchangeability with system specifications before substitution.
Key specifications for 2620-906X10PC28-1/2IN: Valve Type for Which Designed: GLOBE; Largest Outside Diameter: 0.365 INCHES NOMINAL IN; Stem Actuating End Type: THREADED EXTERNALLY; Overall Length: 1.770 INCHES NOMINAL IN. 5 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.