The Rotating Assembly, cataloged under National Stock Number 4320-01-121-3093, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Testek Llc Dba Testek Solutions. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Rotating Assembly |
| FSC / FSG | 4320 — Power and Hand Pumps (FSG 43) |
| Manufacturers | Testek Llc Dba Testek Solutions (CAGE 06659) |
| Parameter | Value |
|---|---|
| NSN | 4320-01-121-3093 |
| Primary Part Number | 5220-0001 |
| Item Name | Rotating Assembly |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Testek Llc Dba Testek Solutions |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 5220-0001 PRIMARY | Testek Llc Dba Testek Solutions (USA) |
| Reference | Meaning |
|---|---|
| 830003 | 5/9 Secondary reference Aai Corporation Div Mississippi Operations |
| 5220-0001 | 3/9 Design control — primary reference Aai Corporation Div Mississippi Operations |
NSN 4320-01-121-3093 is a Rotating Assembly, manufactured by Testek Llc Dba Testek Solutions, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-121-3093 has 1 manufacturer part number on file: 5220-0001 (Testek Llc Dba Testek Solutions).
4 possible matches (shared part number, not a government interchangeability claim): 4320-01-289-3793, 6750-01-429-1878, 5310-01-684-2469. 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.