The Cylinder Assembly,reaction, cataloged under National Stock Number 1680-01-185-0838, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1680-01-185-0838 |
| Primary Part Number | L5228121-001 |
| Item Name | Cylinder Assembly,reaction |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | The Boeing Company Div Legacy Am&m |
| Status | ACTIVE |
| Specific Usage Design | OVERRIDE,NONLINEAR PITCH CONTROL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| L5228121-001 | Thomas Instrument, Incorporated (USA) |
| L5228121-001 PRIMARY | The Boeing Company Div Legacy Am&m (USA) |
NSN 1680-01-185-0838 is a Cylinder Assembly,reaction, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-185-0838 has 2 manufacturer part numbers on file: L5228121-001 (Thomas Instrument, Incorporated), L5228121-001 (The Boeing Company Div Legacy Am&m).
Key specifications for L5228121-001: Special Features: C/O 1 SLEEVE;1 SPRING;1 HOUSING EXTENSION;1 ROD,INNER;1 ROD,OUTER;1 HOUSING;2 NUT;1 PISTON;1 SEAL;1 LOCK;1 ROD END;34.340 IN. LG O/A;UNRESTRICTED EXTENSION/RETRACTION 4.850 IN. IN; Specific Usage Design: OVERRIDE,NONLINEAR PITCH CONTROL; End Item Identification: B-1B ACFT. 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.
NSN 1680-01-185-0838 has DEMIL Code D. 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.