The Adapter,coupling, cataloged under National Stock Number 1615-01-277-3443, is classified within Federal Supply Class 1615 (Helicopter Rotor Blades, Drive Mechanisms and Components) of the Aircraft Components and Accessories group. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1615-01-277-3443 |
| Item Name | Adapter,coupling |
| FSC / FSG | 1615 / 16 — Helicopter Rotor Blades, Drive Mechanisms and Components |
| Status | ACTIVE |
| FSC Application Data | SHAFT,OUTPUT,GEARBOX |
| General Characteristics Item Description | MATL STEEL 4340,CADMIUM AND BLACK OXIDE FINISH,O/A DIMS 8.800 IN. OD,1.888 IN. H,SPLINES ON ID OF 2.941 IN.,8 EQUALLY SPACED HOLES 0.269 IN. ON A 8.375 IN. DIA BSC IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Reference | Meaning |
|---|---|
| 214-040-970-103 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1615-01-277-3443 is a Adapter,coupling, classified under FSC 1615, Helicopter Rotor Blades, Drive Mechanisms and Components. Status: active.
Key specifications for 1615-01-277-3443: FSC Application Data: SHAFT,OUTPUT,GEARBOX; General Characteristics Item Description: MATL STEEL 4340,CADMIUM AND BLACK OXIDE FINISH,O/A DIMS 8.800 IN. OD,1.888 IN. H,SPLINES ON ID OF 2.941 IN.,8 EQUALLY SPACED HOLES 0.269 IN. ON A 8.375 IN. DIA BSC IN; End Item Identification: H-1 HELICOPTER. 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.
NSN 1615-01-277-3443 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.