The Sleeve,shaft,pump, cataloged under National Stock Number 4320-00-346-6446, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-346-6446 |
| Primary Part Number | H4320-346-6446 |
| Item Name | Sleeve,shaft,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Corner Shape | SQUARE OUTSIDE RIGHT CORNER |
| Corner Shape | SQUARE INSIDE LEFT CORNER |
| Corner Shape | CHAMFERED OUTSIDE LEFT CORNER |
| Corner Shape | CHAMFERED INSIDE RIGHT CORNER |
| Body Outside Diameter | 1.1245 INCHES NOMINAL IN |
| Style Designator | SOLID, PLAIN, NO OUTSIDE FLANGES |
| Material Document and Classification | QQ-N-286 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Body Inside Diameter | 0.8752 INCHES NOMINAL IN |
| Antirotation/lubrication Type and Quantity | 1 HOLE |
| Material | NICKEL ALLOY K-500 OVERALL |
| Hole Diameter | 0.1560 INCHES NOMINAL FIRST 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 |
|---|---|
| H4320-346-6446 PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| CA6992-2 | 5/9 Secondary reference U.S. Government activity |
| CA6992-2 | 5/9 Secondary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
NSN 4320-00-346-6446 is a Sleeve,shaft,pump, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-346-6446 has 1 manufacturer part number on file: H4320-346-6446 (Naval Inventory Control Point Mechanicsburg).
Key specifications for H4320-346-6446: Corner Shape: SQUARE OUTSIDE RIGHT CORNER; Corner Shape: SQUARE INSIDE LEFT CORNER; Corner Shape: CHAMFERED OUTSIDE LEFT CORNER; Corner Shape: CHAMFERED INSIDE RIGHT CORNER. 11 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.