The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-285-2251, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is R.s. Corcoran Co.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-285-2251 |
| Primary Part Number | 5503 |
| Item Name | Seal Assembly,shaft,spring Loade |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | R.s. Corcoran Co. |
| Status | ACTIVE |
| 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 |
|---|---|
| 5503 PRIMARY | R.s. Corcoran Co. (USA) |
| Reference | Meaning |
|---|---|
| 1179 | 5/9 Secondary reference R.s. Corcoran Co. |
NSN 4320-01-285-2251 is a Seal Assembly,shaft,spring Loade, manufactured by R.s. Corcoran Co., classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-285-2251 has 1 manufacturer part number on file: 5503 (R.s. Corcoran Co.).
Key specifications for 5503: End Item Identification: PUMP ON HDU-13 HEATER. 0 specifications are 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.