The Counterweight,main Rotor, cataloged under National Stock Number 1615-00-472-7312, 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1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 1615-00-472-7312 |
| Item Name | Counterweight,main Rotor |
| FSC / FSG | 1615 / 16 — Helicopter Rotor Blades, Drive Mechanisms and Components |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,QQ-S-633 COMP 1018 COND B4 OR COLD FINISHED OR COMP 1112 COND BYOR COLD FINISHED,CADMIUM-PLATED QQ-P-416,DIM.,3.970 IN. MIN,3.990 IN. MAX OD0.880 IN. MIN,0.900 IN. MAX ID,1.810 IN. MIN,1.830 IN. MAX O/A LG,IDCOUNTERBORED TO 2.000 IN. DIA BY 0.570 IN. DEEP,COUNTERBORE CHAMFERED 0.300IN. DEEP BY 45 DEG,ID CHAMFERED 0.090 IN. DEEP BY 45 DEG BOTH SIDES,ODREDUCED TO 1.850 IN. DIA BY 0.100 IN. DEEP ON SIDE OPPOSITE COUNTERBOREMAX SURFACE FINISH,ALL SURFACES 125 MICROINCHES AA IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 204-011-173-003 | 5/2 Secondary reference U.S. Government activity |
| 204-011-173-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1615-00-472-7312 is a Counterweight,main Rotor, classified under FSC 1615, Helicopter Rotor Blades, Drive Mechanisms and Components. Status: active.
Key specifications for 1615-00-472-7312: General Characteristics Item Description: STEEL,QQ-S-633 COMP 1018 COND B4 OR COLD FINISHED OR COMP 1112 COND BYOR COLD FINISHED,CADMIUM-PLATED QQ-P-416,DIM.,3.970 IN. MIN,3.990 IN. MAX OD0.880 IN. MIN,0.900 IN. MAX ID,1.810 IN. MIN,1.830 IN. MAX O/A LG,IDCOUNTERBORED TO 2.000 IN. DIA BY 0.570 IN. DEEP,COUNTERBORE CHAMFERED 0.300IN. DEEP BY 45 DEG,ID CHAMFERED 0.090 IN. DEEP BY 45 DEG BOTH SIDES,ODREDUCED TO 1.850 IN. DIA BY 0.100 IN. DEEP ON SIDE OPPOSITE COUNTERBOREMAX SURFACE FINISH,ALL SURFACES 125 MICROINCHES AA 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 1615-00-472-7312 has DEMIL Code B. 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.