The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-026-4256, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is John Crane, Inc. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Seal Assembly,shaft,spring Loade |
| FSC / FSG | 4320 — Power and Hand Pumps (FSG 43) |
| Manufacturers | John Crane, Inc (CAGE 71724); Defense Maritime Solutions, Inc. (CAGE 0EYA6) |
| Parameter | Value |
|---|---|
| NSN | 4320-01-026-4256 |
| Primary Part Number | FSP-21289 B734-61 |
| Item Name | Seal Assembly,shaft,spring Loade |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | John Crane, Inc |
| 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 |
|---|---|
| FSP-21289 B734-61 PRIMARY | John Crane, Inc (USA) |
| FSP-21289 B734-61 | Defense Maritime Solutions, Inc. (USA) |
| Reference | Meaning |
|---|---|
| FSP-21289 B734-61 | 5/9 Secondary reference Wartsila Lips Inc |
| C-545436-01TY43 | C/1 Advisory reference — outside the item-of-supply concept Eg and G Sealol Industrial Sealing Div |
| FSP21289TY1SZ1. | C/1 Advisory reference — outside the item-of-supply concept John Crane, Inc |
NSN 4320-01-026-4256 is a Seal Assembly,shaft,spring Loade, manufactured by John Crane, Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-026-4256 has 2 manufacturer part numbers on file: FSP-21289 B734-61 (John Crane, Inc), FSP-21289 B734-61 (Defense Maritime Solutions, Inc.).
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.