The Switch,governor Underspeed, cataloged under National Stock Number 2990-00-261-9711, is classified within Federal Supply Class 2990 (Miscellaneous Engine Accessories, Nonaircraft) of the Engine Accessories group. The manufacturer of record is Technetics Group Chicago Llc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 2990-00-261-9711 |
| Primary Part Number | SA-1746 |
| Item Name | Switch,governor Underspeed |
| FSC / FSG | 2990 / 29 — Miscellaneous Engine Accessories, Nonaircraft |
| Manufacturer | Technetics Group Chicago Llc |
| Status | ACTIVE |
| General Characteristics Item Description | 5-9/16 IN. MAX LG O/A,FIRST END,2-19/32 IN. OD,W/THREE 6-32 TERMINAL STUDS,ONE NORMALLY OPEN SWITCH TERMINAL,ONE COMMON SWITCH TERMINAL,ONE NORMALLY CLOSED SWITCH TERMINAL,SECOND END THD FEMALE,7/8-18 NS THD,CLASS 3,DIRECT DRIVE ROTOR 0.1855 IN. MIN 0.1875 IN. MAX DIA EXTENDS 1/4 IN. PAST INTERNAL THD END,250 RPM SETTING 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 |
|---|---|
| SA-1746 PRIMARY | Technetics Group Chicago Llc (USA) |
| Reference | Meaning |
|---|---|
| SA347-9G250RPM | 5/9 Secondary reference Woodward Controls Inc. |
| G0U4019A | 5/9 Secondary reference Woodward Controls Inc. |
| SA1746 | 5/9 Secondary reference Woodward Controls Inc. |
NSN 2990-00-261-9711 is a Switch,governor Underspeed, manufactured by Technetics Group Chicago Llc, classified under FSC 2990, Miscellaneous Engine Accessories, Nonaircraft. Status: active.
NSN 2990-00-261-9711 has 1 manufacturer part number on file: SA-1746 (Technetics Group Chicago Llc).
Key specifications for SA-1746: General Characteristics Item Description: 5-9/16 IN. MAX LG O/A,FIRST END,2-19/32 IN. OD,W/THREE 6-32 TERMINAL STUDS,ONE NORMALLY OPEN SWITCH TERMINAL,ONE COMMON SWITCH TERMINAL,ONE NORMALLY CLOSED SWITCH TERMINAL,SECOND END THD FEMALE,7/8-18 NS THD,CLASS 3,DIRECT DRIVE ROTOR 0.1855 IN. MIN 0.1875 IN. MAX DIA EXTENDS 1/4 IN. PAST INTERNAL THD END,250 RPM SETTING 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.