The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-00-876-3574, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Defense Maritime Solutions, Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-00-876-3574 |
| Primary Part Number | NSP-00329 |
| Item Name | Seal Assembly,shaft,spring Loade |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Defense Maritime Solutions, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | CONSIST OF 10 ITEMS 1 SEAT,1 RUBBER SYNTHETIC SEAT RING,1 CARBON WASHER,1 RUBBER SYNTHETIC BELLOW,1 BRASS RETAINER,1 SPRING,1 BRASS DISC,1 BRASS DRIVE BAND,1 SLEEVE,1 RUBBER SYNTHETIC C'RING |
| 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 |
|---|---|
| NSP-00329 PRIMARY | Defense Maritime Solutions, Inc. (USA) |
| M50819 | John Crane, Inc (USA) |
| Reference | Meaning |
|---|---|
| NSP00329 BF9120151 (BRASS/316) | 5/9 Secondary reference John Crane, Inc |
| NSP-00329 | 5/9 Secondary reference Wartsila Lips Inc |
| NSP-00329 M501-89 | 5/9 Secondary reference Wartsila Lips Inc |
| S1150 | 5/9 Secondary reference John Crane, Inc |
| NSP00329 BF9110151 | 5/9 Secondary reference Wartsila Lips Inc |
NSN 4320-00-876-3574 is a Seal Assembly,shaft,spring Loade, manufactured by Defense Maritime Solutions, Inc., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-876-3574 has 2 manufacturer part numbers on file: NSP-00329 (Defense Maritime Solutions, Inc.), M50819 (John Crane, Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5962-00-890-3821, 5330-01-068-8485. Verify interchangeability with system specifications before substitution.
Key specifications for NSP-00329: General Characteristics Item Description: CONSIST OF 10 ITEMS 1 SEAT,1 RUBBER SYNTHETIC SEAT RING,1 CARBON WASHER,1 RUBBER SYNTHETIC BELLOW,1 BRASS RETAINER,1 SPRING,1 BRASS DISC,1 BRASS DRIVE BAND,1 SLEEVE,1 RUBBER SYNTHETIC C'RING. 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.