The Module,flow Control, cataloged under National Stock Number 4820-01-221-3652, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydro-Stack Mfg Corp Sub of the Oilgear Co. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-221-3652 |
| Primary Part Number | L500073HS |
| Item Name | Module,flow Control |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hydro-Stack Mfg Corp Sub of the Oilgear Co |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL BODY BLOCK |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| L500073HS PRIMARY | Hydro-Stack Mfg Corp Sub of the Oilgear Co (USA) |
| Reference | Meaning |
|---|---|
| L500073HS | C/1 Advisory reference — outside the item-of-supply concept The Oilgear Company Dba Jiffy Lube 213 Div Oilgear |
| 06-L45-M7-XP | 5/9 Secondary reference Hydro-Stack Mfg Corp Sub of the Oilgear Co |
| 06-L45-M7-XP-XD | C/1 Advisory reference — outside the item-of-supply concept Hydro-Stack Mfg Corp Sub of the Oilgear Co |
NSN 4820-01-221-3652 is a Module,flow Control, manufactured by Hydro-Stack Mfg Corp Sub of the Oilgear Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-221-3652 has 1 manufacturer part number on file: L500073HS (Hydro-Stack Mfg Corp Sub of the Oilgear Co).
Key specifications for L500073HS: General Characteristics Item Description: STEEL BODY BLOCK. 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.
NSN 4820-01-221-3652 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.