The Adapter Assembly,transmission, cataloged under National Stock Number 1615-00-021-2723, is classified within Federal Supply Class 1615 (Helicopter Rotor Blades, Drive Mechanisms and Components) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1615-00-021-2723 |
| Primary Part Number | 114D3401-1 |
| Item Name | Adapter Assembly,transmission |
| FSC / FSG | 1615 / 16 — Helicopter Rotor Blades, Drive Mechanisms and Components |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,114D3040-F2 ADAPTER,STEEL CORROSION RESISTING LAMINATED PLATE,DIM.,4.800 IN. NOM O/A LG,2.842 IN. BODY OD,ID INVOLUTE SPLINE DATA,FILLET ROOT SIDE FIT,34 TEETH 2.250 IN. LG,16DIAMETRAL PITCH,2.1250 IN. PITCH DIA,2.3000 IN. MAJOR DIA,2.0200 IN. MINOR DIA,20.0 DEG PRESSURE ANGLE,LEFT END FLANGE 0.562 IN. FROM END,4.500 IN. OD BY 0.250 IN. THK,SIX HOLES 0.250 IN. DIA EQUALLY SPACED DRILLED THRU ON 3.750 IN. DIA BOLT CIRCLE,RIGHT END TRIANGULAR FLANGE 4.220 IN. ARM LG BY 1.000 IN. ARM END W,0.680 IN. FLANGE THK,ONEHOLE 0.6250 IN. DIA DRILLED THRU EACH ARM CENTER ON 6.500 IN. DIA BOLT CIRCLE,NO. 114DS344-1 LAMINATED PLATE 8.500IN. OD,0.300 IN. THK,4.500 IN. ID BOLTED TO TRIANGULAR FLANGE BY NO. 114D3053-1 BOLT,NO. MS20365-918 NUT AND NO. 114D3044-1 WASHER,ITEM USED ON ROTOR BRAKE SYNCHRONOUS DRIVE SHAFT 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 |
| Part Number | Manufacturer |
|---|---|
| 114D3401-1 PRIMARY | The Boeing Company (USA) |
NSN 1615-00-021-2723 is a Adapter Assembly,transmission, manufactured by The Boeing Company, classified under FSC 1615, Helicopter Rotor Blades, Drive Mechanisms and Components. Status: active.
NSN 1615-00-021-2723 has 1 manufacturer part number on file: 114D3401-1 (The Boeing Company).
Key specifications for 114D3401-1: General Characteristics Item Description: STEEL,114D3040-F2 ADAPTER,STEEL CORROSION RESISTING LAMINATED PLATE,DIM.,4.800 IN. NOM O/A LG,2.842 IN. BODY OD,ID INVOLUTE SPLINE DATA,FILLET ROOT SIDE FIT,34 TEETH 2.250 IN. LG,16DIAMETRAL PITCH,2.1250 IN. PITCH DIA,2.3000 IN. MAJOR DIA,2.0200 IN. MINOR DIA,20.0 DEG PRESSURE ANGLE,LEFT END FLANGE 0.562 IN. FROM END,4.500 IN. OD BY 0.250 IN. THK,SIX HOLES 0.250 IN. DIA EQUALLY SPACED DRILLED THRU ON 3.750 IN. DIA BOLT CIRCLE,RIGHT END TRIANGULAR FLANGE 4.220 IN. ARM LG BY 1.000 IN. ARM END W,0.680 IN. FLANGE THK,ONEHOLE 0.6250 IN. DIA DRILLED THRU EACH ARM CENTER ON 6.500 IN. DIA BOLT CIRCLE,NO. 114DS344-1 LAMINATED PLATE 8.500IN. OD,0.300 IN. THK,4.500 IN. ID BOLTED TO TRIANGULAR FLANGE BY NO. 114D3053-1 BOLT,NO. MS20365-918 NUT AND NO. 114D3044-1 WASHER,ITEM USED ON ROTOR BRAKE SYNCHRONOUS DRIVE SHAFT 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.
NSN 1615-00-021-2723 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.