The Rotor,idler, cataloged under National Stock Number 4320-00-319-4801, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Hatch & Kirk, Inc.. 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through both NSN and commercial part number lookups. 15 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-319-4801 |
| Primary Part Number | AC4417-1 |
| Item Name | Rotor,idler |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Hatch & Kirk, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,SPECIAL SHAPED; 4.125 IN. O/A LG; 0.531 IN. OD 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 |
|---|---|
| AC4417-1 | Hatch & Kirk, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3N140PC33 | 5/9 Secondary reference Alfa Laval Inc. |
| 3N196PC332 | 5/9 Secondary reference Alfa Laval Inc. |
| 3N134PC33 | 5/9 Secondary reference Alfa Laval Inc. |
| 3N197PC32 | 5/9 Secondary reference Alfa Laval Inc. |
| 3N224PC32 | 5/9 Secondary reference Alfa Laval Inc. |
| 3N145PC33 | 5/9 Secondary reference Alfa Laval Inc. |
| 3N223PC32 | 5/9 Secondary reference Alfa Laval Inc. |
| 3N133ALT1PC33 | 5/9 Secondary reference Alfa Laval Inc. |
| NN121PC32PMP | 5/9 Secondary reference Alfa Laval Inc. |
| 3N146PC33 | 5/9 Secondary reference Alfa Laval Inc. |
| 3N173-32 | 5/9 Secondary reference Alfa Laval Inc. |
| AC4417-1 | 3/9 Design control — primary reference Alfa Laval Inc. |
| 3N139PC33 | 5/9 Secondary reference Alfa Laval Inc. |
| 3N172PC32 | 5/9 Secondary reference Alfa Laval Inc. |
| AM421S5502-1383119PC32PMP | 3/2 Design control — primary reference U.S. Government activity |
NSN 4320-00-319-4801 is a Rotor,idler, manufactured by Hatch & Kirk, Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-319-4801 has 1 manufacturer part number on file: AC4417-1 (Hatch & Kirk, Inc.).
Key specifications for AC4417-1: General Characteristics Item Description: STEEL,SPECIAL SHAPED; 4.125 IN. O/A LG; 0.531 IN. OD IN. 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.