The Valve Slew Stop, cataloged under National Stock Number 4820-01-479-4975, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is North American Crane and Equipment Co Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-479-4975 |
| Primary Part Number | PL-8200 ITEM 18 |
| Item Name | Valve Slew Stop |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | North American Crane and Equipment Co Llc |
| Status | ACTIVE |
| Thread Size and Series/type Designator | 07.50-12-1 UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| PL-8200 ITEM 18 PRIMARY | North American Crane and Equipment Co Llc (USA) |
| 987772 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| Reference | Meaning |
|---|---|
| MA50-ACNO-12 | C/1 Advisory reference — outside the item-of-supply concept Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division |
| 987772 | 5/9 Secondary reference Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division |
NSN 4820-01-479-4975 is a Valve Slew Stop, manufactured by North American Crane and Equipment Co Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-479-4975 has 2 manufacturer part numbers on file: PL-8200 ITEM 18 (North American Crane and Equipment Co Llc), 987772 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).
Key specifications for PL-8200 ITEM 18: Overall Length: 6.810 INCHES MAXIMUM IN; Overall Width: 3.200 INCHES MAXIMUM IN; Special Features: INLET/OUTLET THREADS 12-3/4 NPTF;INLET/OUTLET FLOW RATE 50 GPM;AC ROLLER OPERATED; Thread Size and Series/type Designator: 07.50-12-1 UNIFIED NATIONAL COARSE (UNC). 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.