The Low Pressure Switch, cataloged under National Stock Number 1680-01-561-2497, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and Components) of the Aircraft Components and Accessories group. The manufacturer of record is Fluid Components International Llc Dba Fluid Components International Llc Div Aerospace Division. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 1680-01-561-2497 |
| Primary Part Number | 020123-01 |
| Item Name | Low Pressure Switch |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Fluid Components International Llc Dba Fluid Components International Llc Div Aerospace Division |
| 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 |
|---|---|
| 020123-01 PRIMARY | Fluid Components International Llc Dba Fluid Components International Llc Div Aerospace Division (USA) |
| 123SCEC5226-1 PRIMARY | Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems (USA) |
| Reference | Meaning |
|---|---|
| 123SCEC5226-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| 123SCEC5226-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 1680-01-561-2497 is a Low Pressure Switch, manufactured by Fluid Components International Llc Dba Fluid Components International Llc Div Aerospace Division, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-01-561-2497 has 2 manufacturer part numbers on file: 020123-01 (Fluid Components International Llc Dba Fluid Components International Llc Div Aerospace Division), 123SCEC5226-1 (Northrop Grumman Systems Corporation Div Northrop Grumman Aeronautics Systems).
Key specifications for 020123-01: Part Name Assigned by Controlling Agency: (INAVY)LOW PRESSURE SWITCH; End Item Identification: HAWKEYE ISIL. 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.
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.