The Parts Kit,piston Assembly,compre, cataloged under National Stock Number 4310-01-453-9969, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Bourns 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4310-01-453-9969 |
| Primary Part Number | 30221 |
| Item Name | Parts Kit,piston Assembly,compre |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Bourns Inc |
| Status | ACTIVE |
| Furnished Items | INCLUDES ENTIRE PISTON ASSEMBLY |
| 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 |
|---|---|
| 30221 PRIMARY | Bourns Inc (USA) |
| Reference | Meaning |
|---|---|
| 30221 | 3/9 Design control — primary reference Cat Pumps Corp |
NSN 4310-01-453-9969 is a Parts Kit,piston Assembly,compre, manufactured by Bourns Inc, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-453-9969 has 1 manufacturer part number on file: 30221 (Bourns Inc).
2 possible matches (shared part number, not a government interchangeability claim): 7030-01-542-8474, 3130-01-649-4500. Verify interchangeability with system specifications before substitution.
Key specifications for 30221: Furnished Items: INCLUDES ENTIRE PISTON ASSEMBLY; Part Name Assigned by Controlling Agency: PISTON KIT; End Item Identification: MODEL 820 PUMP. 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.