The Liner,sleeve, cataloged under National Stock Number 4320-01-389-0776, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-389-0776 |
| Primary Part Number | 6641191 |
| Item Name | Liner,sleeve |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL IS BRONZE PER QQ-C-390, C865 TYPE 2 |
| 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 |
|---|---|
| 6641191 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 264393054 | D/9 Drawing number reference only Naval Sea Systems Command |
| 264393054-A2 | 3/9 Design control — primary reference U.S. Government activity |
| 801-6641191FNB2 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 4320-01-389-0776 is a Liner,sleeve, manufactured by Naval Sea Systems Command, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-389-0776 has 1 manufacturer part number on file: 6641191 (Naval Sea Systems Command).
2 possible matches (shared part number, not a government interchangeability claim): 3020-01-400-3205, 4320-01-633-4557. Verify interchangeability with system specifications before substitution.
Key specifications for 6641191: General Characteristics Item Description: MATERIAL IS BRONZE PER QQ-C-390, C865 TYPE 2; End Item Identification: VALVE;NAVAL SEA SYSTEMS COMMAND;W/S ROLLER MOTORIZED. 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.