The Ring.backup, cataloged under National Stock Number 1680-01-645-5826, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Trelleborg Sealing Solutions Us, Inc.. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Ring.backup |
| FSC / FSG | 1680 — Miscellaneous Aircraft Accessories and Components (FSG 16) |
| Manufacturers | Trelleborg Sealing Solutions Us, Inc. (CAGE 09257) |
| Parameter | Value |
|---|---|
| NSN | 1680-01-645-5826 |
| Primary Part Number | S33157-212-10C |
| Item Name | Ring.backup |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| 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 |
|---|---|
| S33157-212-10C PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
| Reference | Meaning |
|---|---|
| C29192-212 | 1/2 Source control — Government-approved source U.S. Government activity |
| S33157-215 | 5/9 Secondary reference Trelleborg Sealing Solutions Us, Inc. |
NSN 1680-01-645-5826 is a Ring.backup, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-645-5826 has 1 manufacturer part number on file: S33157-212-10C (Trelleborg Sealing Solutions Us, Inc.).
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.