The Seal Ring Assembly, cataloged under National Stock Number 4320-01-633-9891, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Item Name | Seal Ring Assembly |
| FSC / FSG | 4320 — No Item Name Available (FSG 43) |
| Manufacturers | Naval Inventory Control Point Mechanicsburg (CAGE 03950); Naval Sea Systems Command (CAGE 53711); John Crane, Inc (CAGE 71724) |
| Parameter | Value |
|---|---|
| NSN | 4320-01-633-9891 |
| Primary Part Number | 8503398 ITEM 2L1 |
| Item Name | Seal Ring Assembly |
| FSC / FSG | 4320 / 43 — No Item Name Available |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8503398 ITEM 2L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| NSP-1000024L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 8503398 ITEM 2 | Naval Sea Systems Command (USA) |
| 8503399L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 8503399 | Naval Sea Systems Command (USA) |
| NSP-1000024 | John Crane, Inc (USA) |
NSN 4320-01-633-9891 is a Seal Ring Assembly, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4320 (No Item Name Available). Status: active.
NSN 4320-01-633-9891 has 6 cross-referenced part numbers: 8503398 ITEM 2L1 (Naval Inventory Control Point Mechanicsburg), NSP-1000024L1 (Naval Inventory Control Point Mechanicsburg), 8503398 ITEM 2 (Naval Sea Systems Command), 8503399L1 (Naval Inventory Control Point Mechanicsburg), 8503399 (Naval Sea Systems Command) and 1 more.
There is 1 known substitute for 4320-01-633-9891: 5920-00-142-4842. Verify interchangeability with system specifications before substitution.