The Ring,backup, cataloged under National Stock Number 1650-01-425-1676, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-01-425-1676 |
| Primary Part Number | 935600 |
| Item Name | Ring,backup |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 935600 | Transaero, Inc. (USA) |
| 935600 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 6600-012 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 6600-012 | Transaero, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 935600 | 5/9 Secondary reference U.S. Government activity |
NSN 1650-01-425-1676 is a Ring,backup, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-01-425-1676 has 4 manufacturer part numbers on file: 935600 (Transaero, Inc.), 935600 (Eaton Aerospace, Llc Dba Jackson South), 6600-012 (Eaton Aerospace, Llc Dba Jackson South), 6600-012 (Transaero, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 6130-01-440-5847. Verify interchangeability with system specifications before substitution.
Key specifications for 935600: Part Name Assigned by Controlling Agency: HYDRAULIC BACKUP RING; End Item Identification: WEAPONS SYSTEM DT, AIRCRAFT, AIRLIFTER C-17A A. 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.
NSN 1650-01-425-1676 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.