The Ring,piston, cataloged under National Stock Number 4310-01-048-9356, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Trelleborg Sealing Solutions Us, Inc.. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Ring,piston |
| FSC / FSG | 4310 — Compressors and Vacuum Pumps (FSG 43) |
| Manufacturers | Trelleborg Sealing Solutions Us, Inc. (CAGE 09257); The Boeing Company (CAGE 77272) |
| Parameter | Value |
|---|---|
| NSN | 4310-01-048-9356 |
| Primary Part Number | S-12447-2 |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. |
| 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 |
|---|---|
| S-12447-2 PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
| A02HS480-2 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| S12447 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| S-12447-2 | 5/9 Secondary reference U.S. Government activity |
NSN 4310-01-048-9356 is a Ring,piston, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-048-9356 has 2 manufacturer part numbers on file: S-12447-2 (Trelleborg Sealing Solutions Us, Inc.), A02HS480-2 (The Boeing Company).
1 possible match (shared part number, not a government interchangeability claim): 2810-01-562-5584. Verify interchangeability with system specifications before substitution.
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.