The Adapter Assembly,interface Devic, cataloged under National Stock Number 4920-00-997-9127, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is General Electric Company. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-00-997-9127 |
| Primary Part Number | 21C891-59 |
| Item Name | Adapter Assembly,interface Devic |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| FSC Application Data | KIT,ADAPTER |
| Supplementary Features | COMPANY ITEM NAME-ADAPTER, ENGINE STAND |
| 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 |
|---|---|
| 21C891-59 PRIMARY | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 21C891-59 | 5/9 Secondary reference Acme Machine and Tool Co Inc |
NSN 4920-00-997-9127 is a Adapter Assembly,interface Devic, manufactured by General Electric Company, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-997-9127 has 1 manufacturer part number on file: 21C891-59 (General Electric Company).
Key specifications for 21C891-59: FSC Application Data: KIT,ADAPTER; Supplementary Features: COMPANY ITEM NAME-ADAPTER, ENGINE STAND; Special Features: 8.000 IN. LG; 3.020 IN. W; 2.500 IN. H; STEEL AMS 6382 A1S1 4140; USED TO ADAPT J85 SERIES ENGINE TO M37 STAND IN; End Item Identification: J-85 ENGINE AGE.. 2 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.