The Separator,pump, cataloged under National Stock Number 4320-01-391-6392, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Alfred Conhagen, Inc.. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Separator,pump |
| FSC / FSG | 4320 — Power and Hand Pumps (FSG 43) |
| Manufacturers | Alfred Conhagen, Inc. (CAGE 71639) |
| Parameter | Value |
|---|---|
| NSN | 4320-01-391-6392 |
| Primary Part Number | AA-2551 PIECE 31 |
| Item Name | Separator,pump |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Alfred Conhagen, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| AA-2551 PIECE 31 | Alfred Conhagen, Inc. (USA) |
| Reference | Meaning |
|---|---|
| AA-2551 | D/9 Drawing number reference only Alfred Conhagen, Inc. |
| AA-2551-31 | 5/9 Secondary reference Alfred Conhagen, Inc. |
| AS-0530-003 | 3/9 Design control — primary reference Alfred Conhagen, Inc. |
NSN 4320-01-391-6392 is a Separator,pump, manufactured by Alfred Conhagen, Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-391-6392 has 1 manufacturer part number on file: AA-2551 PIECE 31 (Alfred Conhagen, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4320-01-448-2635. Verify interchangeability with system specifications before substitution.
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.