The Piston,compressor, cataloged under National Stock Number 4310-00-031-7769, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 17 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 | 4310-00-031-7769 |
| Primary Part Number | 322261-3 |
| Item Name | Piston,compressor |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Ring Groove Width | 0.115 INCHES NOMINAL IN |
| Integral Connecting Rod | NOT INCLUDED |
| Retaining Ring Groove | NOT INCLUDED |
| Surface Finish | FINISHED |
| Ring Groove Position and Quantity | NO.1,AND NO2 POSITIONS PISTON |
| Oil Passage Type | HOLE |
| Diameter | 0.315 INCHES NOMINAL IN |
| Ring Groove Diameter | 0.220 INCHES NOMINAL IN |
| Distance From Pin Hole Center to Extreme Top | 0.156 INCHES NOMINAL IN |
| Pin | NOT INCLUDED |
| Oil Groove | NOT INCLUDED |
| Head Style | FLAT |
| Ring Groove Quantity | 2 |
| Ring | NOT INCLUDED |
| Pinhole Diameter | 0.046 INCHES NOMINAL IN |
| Pin Hole Bushing | NOT INCLUDED |
| Material | STEEL |
| 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 |
|---|---|
| 322261-3 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
NSN 4310-00-031-7769 is a Piston,compressor, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-00-031-7769 has 1 manufacturer part number on file: 322261-3 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for 322261-3: Overall Height: 0.825 INCHES NOMINAL IN; Ring Groove Width: 0.115 INCHES NOMINAL IN; Integral Connecting Rod: NOT INCLUDED; Retaining Ring Groove: NOT INCLUDED. 17 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.