The Spring Assembly,compensator, cataloged under National Stock Number 1650-00-970-4670, 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. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-970-4670 |
| Primary Part Number | 921556 |
| Item Name | Spring Assembly,compensator |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| General Characteristics Item Description | COMPONENTS SPRING SEATS 2 SPRING GUIDE 1 SPRINGS 2 CONNECTING ROD 1,OVERALL LG 1.955 IN IN |
| 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 |
|---|---|
| 921556 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
| Reference | Meaning |
|---|---|
| 921556 | 3/9 Design control — primary reference U.S. Government activity |
| 2281 | 5/9 Secondary reference U.S. Government activity |
| 2281 | 5/9 Secondary reference General Signal Corp |
NSN 1650-00-970-4670 is a Spring Assembly,compensator, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-970-4670 has 1 manufacturer part number on file: 921556 (Eaton Aerospace, Llc Dba Jackson South).
Key specifications for 921556: General Characteristics Item Description: COMPONENTS SPRING SEATS 2 SPRING GUIDE 1 SPRINGS 2 CONNECTING ROD 1,OVERALL LG 1.955 IN IN. 1 specification is 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.