The Disk,valve, cataloged under National Stock Number 4820-01-008-5962, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Oilgear Company Dba Jiffy Lube 213 Div Oilgear. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-008-5962 |
| Primary Part Number | 1840-1 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Oilgear Company Dba Jiffy Lube 213 Div Oilgear |
| Status | ACTIVE |
| Shank Diameter | 1.500 INCHES NOMINAL IN |
| Seat Angle | 45.0 DEGREES NOMINAL |
| Inside Diameter | 0.875 INCHES NOMINAL IN |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| LL704PC5 | The Oilgear Company Dba Jiffy Lube 213 Div Oilgear (USA) |
| 1840-1 PRIMARY | The Oilgear Company Dba Jiffy Lube 213 Div Oilgear (USA) |
| Reference | Meaning |
|---|---|
| LL704PC5 | 5/9 Secondary reference Vickers Inc |
| 1840-1 | 3/9 Design control — primary reference Olmsted Products Company Llc |
| LL704PC5 | 5/9 Secondary reference Olmsted Products Company Llc |
| 1840-1 | 5/9 Secondary reference Vickers Inc |
NSN 4820-01-008-5962 is a Disk,valve, manufactured by The Oilgear Company Dba Jiffy Lube 213 Div Oilgear, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-008-5962 has 2 manufacturer part numbers on file: LL704PC5 (The Oilgear Company Dba Jiffy Lube 213 Div Oilgear), 1840-1 (The Oilgear Company Dba Jiffy Lube 213 Div Oilgear).
2 possible matches (shared part number, not a government interchangeability claim): 5935-01-694-6525, 3770-01-719-9997. Verify interchangeability with system specifications before substitution.
Key specifications for 1840-1: Shank Diameter: 1.500 INCHES NOMINAL IN; Overall Height: 2.958 INCHES NOMINAL IN; Seat Angle: 45.0 DEGREES NOMINAL; Inside Diameter: 0.875 INCHES NOMINAL IN. 4 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.
NSN 4820-01-008-5962 has DEMIL Code Q. 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.