The Piston,compressor, cataloged under National Stock Number 4310-01-419-6347, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-419-6347 |
| Primary Part Number | 595-6404642-8 |
| Item Name | Piston,compressor |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Integral Connecting Rod | INCLUDED |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | FINISHED |
| Diameter | 2.750 INCHES NOMINAL IN |
| Pin | NOT INCLUDED |
| Oil Groove | NOT INCLUDED |
| Head Style | FLAT |
| Skirt Bottom Cutaway Feature | INCLUDED |
| Finished Size Designation | STANDARD |
| Ring | NOT INCLUDED |
| Pin Hole Bushing | NOT INCLUDED |
| Material | NICKEL ALLOY |
| Skirt Type | SOLID |
| Cut Depth | 0.670 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 595-6404642-8 PRIMARY | Naval Sea Systems Command (USA) |
| 211017142 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6404642 | D/9 Drawing number reference only Naval Sea Systems Command |
| 6404642 FIND 8 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 4310-01-419-6347 is a Piston,compressor, manufactured by Naval Sea Systems Command, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-419-6347 has 2 manufacturer part numbers on file: 595-6404642-8 (Naval Sea Systems Command), 211017142 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-420-1118. Verify interchangeability with system specifications before substitution.
Key specifications for 595-6404642-8: Overall Height: 9.380 INCHES NOMINAL IN; Integral Connecting Rod: INCLUDED; Retaining Ring Groove: NOT INCLUDED; Surface Finish: FINISHED. 14 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.
NSN 4310-01-419-6347 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.