The Trunnion Assembly, cataloged under National Stock Number 1615-00-474-9224, 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 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1615-00-474-9224 |
| Item Name | Trunnion Assembly |
| FSC / FSG | 1615 / 16 — Helicopter Rotor Blades, Drive Mechanisms and Components |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,MIL-S-5000 COMP 4340,CADMIUM-PLATED QQ-P-416 CLASS 1 TYPE 2,DIM.,9.000 IN. NOM O/A LG,5.200 IN. NOM CENTER W,3.000 IN. NOM CENTER HT,2.2499 IN. MIN,2.2505 IN. MAX LEFT AND RIGHT EMD OD BY 1.600 IN. NOM OD LG,1.125 IN. NOM LEFT AND RIGHT END ID BY 1.780 IN. LG,1.501 IN. NOM LEFT AND RIGHT END ID COUNTERBORE DIA BY 1.000 IN. LG,CENTER INVOLUTE SPLINE DATA,FILLET ROOT SPLINE,SIDE BEARING SLIDING CLASS A FIT,38 TEETH,10/20 DIAMETRAL PITCH,30.0 DEG PRESSURE ANGLE,3.800 IN. PITCH DIA,3.9800 IN. MIN,3.9950 IN. MAX MAJOR DIA,3.7000 IN. MIN,3.7025 IN. MAX MAJOR DIA,ONE EXTERNAL SLOT PARALLEL TO SPLINES ON EACH SIDE ON CENTER SACTION 1.000 IN. W BY 0.315 IN. DEEP 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 |
|---|---|
| 204-011-105-001 | 5/2 Secondary reference U.S. Government activity |
| 204-011-105-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1615-00-474-9224 is a Trunnion Assembly, classified under FSC 1615, Helicopter Rotor Blades, Drive Mechanisms and Components. Status: active.
Key specifications for 1615-00-474-9224: General Characteristics Item Description: STEEL,MIL-S-5000 COMP 4340,CADMIUM-PLATED QQ-P-416 CLASS 1 TYPE 2,DIM.,9.000 IN. NOM O/A LG,5.200 IN. NOM CENTER W,3.000 IN. NOM CENTER HT,2.2499 IN. MIN,2.2505 IN. MAX LEFT AND RIGHT EMD OD BY 1.600 IN. NOM OD LG,1.125 IN. NOM LEFT AND RIGHT END ID BY 1.780 IN. LG,1.501 IN. NOM LEFT AND RIGHT END ID COUNTERBORE DIA BY 1.000 IN. LG,CENTER INVOLUTE SPLINE DATA,FILLET ROOT SPLINE,SIDE BEARING SLIDING CLASS A FIT,38 TEETH,10/20 DIAMETRAL PITCH,30.0 DEG PRESSURE ANGLE,3.800 IN. PITCH DIA,3.9800 IN. MIN,3.9950 IN. MAX MAJOR DIA,3.7000 IN. MIN,3.7025 IN. MAX MAJOR DIA,ONE EXTERNAL SLOT PARALLEL TO SPLINES ON EACH SIDE ON CENTER SACTION 1.000 IN. W BY 0.315 IN. DEEP 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 1615-00-474-9224 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.