The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-124-0973, 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. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-124-0973 |
| Primary Part Number | M04401 |
| Item Name | Seal Assembly,shaft,spring Loade |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | John Crane, Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF 1 SPRING HOLDER,1 SPRING,1 WASHER,1 GASKET,1 BELLOWS,1 SEAL,AND 1 PACKING GLAND |
| 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 |
|---|---|
| M044-01 | Defense Maritime Solutions, Inc. (USA) |
| D-SP-5283 | John Crane, Inc (USA) |
| M04401 PRIMARY | John Crane, Inc (USA) |
| Reference | Meaning |
|---|---|
| HSP-10318-1 | 3/9 Design control — primary reference Wartsila Lips Inc |
| HSP-10318-1 | C/1 Advisory reference — outside the item-of-supply concept Defense Maritime Solutions, Inc. |
NSN 4320-01-124-0973 is a Seal Assembly,shaft,spring Loade, manufactured by John Crane, Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-124-0973 has 3 manufacturer part numbers on file: M044-01 (Defense Maritime Solutions, Inc.), D-SP-5283 (John Crane, Inc), M04401 (John Crane, Inc).
Key specifications for M04401: General Characteristics Item Description: CONSISTS OF 1 SPRING HOLDER,1 SPRING,1 WASHER,1 GASKET,1 BELLOWS,1 SEAL,AND 1 PACKING GLAND. 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.