The Retainer,diaphragm,interstage Ai, cataloged under National Stock Number 2840-00-034-1017, 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1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2840-00-034-1017 |
| Item Name | Retainer,diaphragm,interstage Ai |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY AMS4027,ANODIC FILM AMS2470,ROCKWELL 30T SCALE 49.5 MIN HARDNESS,2.600 IN. OD,1.295 IN. ID,0.140 IN. MIN,0.144 IN. MAX THK,6 HOLES 0.220 IN. DIA EQUALLY SPACED 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 |
|---|---|
| 2-160-274-01 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2840-00-034-1017 is a Retainer,diaphragm,interstage Ai, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
Key specifications for 2840-00-034-1017: General Characteristics Item Description: ALUMINUM ALLOY AMS4027,ANODIC FILM AMS2470,ROCKWELL 30T SCALE 49.5 MIN HARDNESS,2.600 IN. OD,1.295 IN. ID,0.140 IN. MIN,0.144 IN. MAX THK,6 HOLES 0.220 IN. DIA EQUALLY SPACED IN; End Item Identification: ENGINE T-55. 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.