The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-055-8359, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Carver Pump Company. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4320-01-055-8359 |
| Primary Part Number | 712-0400-736 |
| Item Name | Seal Assembly,shaft,spring Loade |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Carver Pump Company |
| Status | ACTIVE |
| General Characteristics Item Description | CONSISTS OF ONE EA OF THE FOLLOWING; STATIONARY SEAL RING,ROTARY SEAL RING; ROTARY ADAPTER,SPRING; SPRING SLEEVE; 2-15/16 IN. ID; 3.800 IN. FREE O/A ASSEMBLED LG IN |
| 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 |
|---|---|
| H-SP-2077O40F51D1(304) | John Crane, Inc (USA) |
| N98023 | John Crane, Inc (USA) |
| 712-0400-736 PRIMARY | Carver Pump Company (USA) |
| H-SP-2077 | John Crane, Inc (USA) |
| Reference | Meaning |
|---|---|
| HSP-2077-1 | C/1 Advisory reference — outside the item-of-supply concept Defense Maritime Solutions, Inc. |
| 600-N-62179001 | 5/9 Secondary reference John Crane, Inc |
| 712-0400-999 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
| 712-0400-736 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
| HSP-2077-1 | 5/9 Secondary reference Wartsila Lips Inc |
NSN 4320-01-055-8359 is a Seal Assembly,shaft,spring Loade, manufactured by Carver Pump Company, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-055-8359 has 4 manufacturer part numbers on file: H-SP-2077O40F51D1(304) (John Crane, Inc), N98023 (John Crane, Inc), 712-0400-736 (Carver Pump Company), H-SP-2077 (John Crane, Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4470-01-218-9149, 4320-01-714-6810. Verify interchangeability with system specifications before substitution.
Key specifications for 712-0400-736: General Characteristics Item Description: CONSISTS OF ONE EA OF THE FOLLOWING; STATIONARY SEAL RING,ROTARY SEAL RING; ROTARY ADAPTER,SPRING; SPRING SLEEVE; 2-15/16 IN. ID; 3.800 IN. FREE O/A ASSEMBLED LG IN. 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.