The Plug Assembly,horizontal Strut,a, cataloged under National Stock Number 2840-00-991-0409, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-00-991-0409 |
| Item Name | Plug Assembly,horizontal Strut,a |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Status | ACTIVE |
| General Characteristics Item Description | TUBE,ALUMINUM ALLOY,AMS4150,ROCKWELL A SCALE 50 MIN HARDNESS,CHEMICAL SURFACE TREATMENT,AMS2473,0.744 IN. MIN,0.749 IN. MAX OD,1 CIRCULAR GROOVE ON OD,0.100 IN. NOM W GROOVE,0.050 IN. MIN,0.053 IN. MAX DEPTH GROOVE,0.130 IN. NOM DISTANCE FROM 1ST END TO GROOVE,1ST END,INT THD HOLE DRILLED LONGITUDINALLY THROUGH BODY AT CENTERLINE,0.190 IN.-24 NC SERIES CL 3B THD,0.375 IN. NOM DEPTH THD,HOLE COUNTERSUNK 90 DEG BY 0.220 IN. NOM DIA,2ND END,0.623 IN. MIN,0.630 IN. MAX ID,3.500 IN. NOM DEPTH OF ID W/PLUG CLOSURE,1 HOLE 0.375 IN. NOM DIA THROUGH BOTH WALLS OF TUBE,0.960 IN. NOM DISTANCE FROM 1ST END TO HOLE CENTER,1 HOLE 0.266 IN. NOM DIA THROUGH ONE OD WALL,1.990 IN. NOM DISTANCE FROM 1ST END TO HOLE CENTER IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2-060-030-03 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2840-00-991-0409 is a Plug Assembly,horizontal Strut,a, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
Key specifications for 2840-00-991-0409: General Characteristics Item Description: TUBE,ALUMINUM ALLOY,AMS4150,ROCKWELL A SCALE 50 MIN HARDNESS,CHEMICAL SURFACE TREATMENT,AMS2473,0.744 IN. MIN,0.749 IN. MAX OD,1 CIRCULAR GROOVE ON OD,0.100 IN. NOM W GROOVE,0.050 IN. MIN,0.053 IN. MAX DEPTH GROOVE,0.130 IN. NOM DISTANCE FROM 1ST END TO GROOVE,1ST END,INT THD HOLE DRILLED LONGITUDINALLY THROUGH BODY AT CENTERLINE,0.190 IN.-24 NC SERIES CL 3B THD,0.375 IN. NOM DEPTH THD,HOLE COUNTERSUNK 90 DEG BY 0.220 IN. NOM DIA,2ND END,0.623 IN. MIN,0.630 IN. MAX ID,3.500 IN. NOM DEPTH OF ID W/PLUG CLOSURE,1 HOLE 0.375 IN. NOM DIA THROUGH BOTH WALLS OF TUBE,0.960 IN. NOM DISTANCE FROM 1ST END TO HOLE CENTER,1 HOLE 0.266 IN. NOM DIA THROUGH ONE OD WALL,1.990 IN. NOM DISTANCE FROM 1ST END TO HOLE CENTER 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.