The Valve,weighted Control,piston, cataloged under National Stock Number 4820-00-845-8013, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Windham Lifts Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-845-8013 |
| Primary Part Number | 11649 |
| Item Name | Valve,weighted Control,piston |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Windham Lifts Inc |
| Status | ACTIVE |
| Connection Style | PLAIN,OPTIONAL END(PIPE) ALL ENDS |
| Center to Center Distance | 2.125 INCHES IN |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | TEE W/OFFSET |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.375 INCHES ALL ENDS IN |
| Media for Which Designed | OIL, HYDRAULIC SINGLE RESPONSE |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | ALUMINUM ALLOY BODY |
| Thread Series Designator | NPTF ALL ENDS |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 2V13-3-10S | Danfoss Fluid Power Inc Easley Opn (USA) |
| 11649 PRIMARY | Windham Lifts Inc (USA) |
| Reference | Meaning |
|---|---|
| 294041 | C/1 Advisory reference — outside the item-of-supply concept Hyster-Yale Group, Inc. |
NSN 4820-00-845-8013 is a Valve,weighted Control,piston, manufactured by Windham Lifts Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-845-8013 has 2 manufacturer part numbers on file: 2V13-3-10S (Danfoss Fluid Power Inc Easley Opn), 11649 (Windham Lifts Inc).
4 possible matches (shared part number, not a government interchangeability claim): 2810-01-288-6430, 5120-01-368-4095, 6750-01-400-3063. Verify interchangeability with system specifications before substitution.
Key specifications for 11649: Connection Style: PLAIN,OPTIONAL END(PIPE) ALL ENDS; Center to Center Distance: 2.125 INCHES IN; Connection Type: THREADED INTERNAL PIPE ALL ENDS; Style Designator: TEE W/OFFSET. 12 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.