The Sizing Ring,seal,hydraulic Actua, cataloged under National Stock Number 4920-01-642-1654, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Sizing Ring,seal,hydraulic Actua |
| FSC / FSG | 4920 — Aircraft Maintenance and Repair Shop Specialized Equipment (FSG 49) |
| Parameter | Value |
|---|---|
| NSN | 4920-01-642-1654 |
| Item Name | Sizing Ring,seal,hydraulic Actua |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| 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 |
| Reference | Meaning |
|---|---|
| 3833714 | D/9 Drawing number reference only U.S. Government activity |
| 3833714-214 | 5/1 Secondary reference Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations |
| 3833714-2142 | 5/9 Secondary reference U.S. Government activity |
| 3833714-214 | 3/2 Design control — primary reference U.S. Government activity |
| 3833714-2143 | 5/9 Secondary reference U.S. Government activity |
| 3833714-2141 | 5/9 Secondary reference U.S. Government activity |
NSN 4920-01-642-1654 is a Sizing Ring,seal,hydraulic Actua, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
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 4920-01-642-1654 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.