The Cylinder Sleeve, cataloged under National Stock Number 4320-00-652-6571, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 15 specifications, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-652-6571 |
| Primary Part Number | 1254546 |
| Item Name | Cylinder Sleeve |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| FSC Application Data | LAUNCHING RAIL GUIDED MISSILE |
| Design Type | WET |
| Body Outside Diameter | 4.250 INCHES NOMINAL IN |
| Top Intake Port | NOT INCLUDED |
| Style Designator | DRY, PLAIN |
| Hole Quantity Per Row | 6 |
| Distance From Top to Center of First Row | 0.813 INCHES NOMINAL IN |
| Top Inside Chamfer | NOT INCLUDED |
| Valve Recess | NOT INCLUDED |
| Intake Hole | INCLUDED |
| Bottom Inside Chamfer | NOT INCLUDED |
| Bore Diameter | 3.625 INCHES NOMINAL IN |
| Material | STEEL |
| Row Quantity | 1 |
| Hole Diameter | 0.312 INCHES NOMINAL IN |
| 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 |
|---|---|
| 1254546 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 4320-00-652-6571 is a Cylinder Sleeve, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-652-6571 has 1 manufacturer part number on file: 1254546 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1254546: FSC Application Data: LAUNCHING RAIL GUIDED MISSILE; Design Type: WET; Body Outside Diameter: 4.250 INCHES NOMINAL IN; Top Intake Port: NOT INCLUDED. 15 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.