The Weight,rotary Wing Blade, cataloged under National Stock Number 1615-00-495-6571, 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1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1615-00-495-6571 |
| Item Name | Weight,rotary Wing Blade |
| FSC / FSG | 1615 / 16 — Helicopter Rotor Blades, Drive Mechanisms and Components |
| Status | ACTIVE |
| General Characteristics Item Description | TUNGSTEN ALLOY,MALLORY 1000,P.R. MALLORY CO,IND OR DENSALLOY 170 OR 180POWDER ALLOYS CORP,CLIFTON,NJ OR FANSTEEL 77,FANSTEEL METALLURGICAL CORPCHICAGO,ILL,DIM.,3.180 IN. NOM LG,1.500 IN. NOM W,0.500 IN. NOM THICK,TWOHOLES 0.208 IN. MIN,0.214 IN. MAX DIA DRILLED THRU 0.450 IN. EITHER SIDE OFVERTICAL CENTERLINE AND 0.480 IN. FROM BOTTOM,ONE HOLE 0.208 IN. MIN,0.214IN. MAX DIA DRILLED THRU ON VERTICAL CENTERLINE 2.830 IN. FROM BOTTOMCORNERS CHAMFERED 0.250 IN. DEEP BY 25 DEG ON BOTTOM,0.250 IN. DEEP BY 40DEG ON TOP,TOP HOLE COUNTERBORED 0.377 IN. DIA BY 0.400 IN. DEEP,TOP WIDTHBEVELED BY 45 DEG ANGLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 540-011-019-11 | 3/2 Design control — primary reference U.S. Government activity |
| 540-011-019-11 | 5/2 Secondary reference U.S. Government activity |
| 540-011-019 | D/9 Drawing number reference only U.S. Government activity |
NSN 1615-00-495-6571 is a Weight,rotary Wing Blade, classified under FSC 1615, Helicopter Rotor Blades, Drive Mechanisms and Components. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 1615-00-495-6572. Verify interchangeability with system specifications before substitution.
Key specifications for 1615-00-495-6571: General Characteristics Item Description: TUNGSTEN ALLOY,MALLORY 1000,P.R. MALLORY CO,IND OR DENSALLOY 170 OR 180POWDER ALLOYS CORP,CLIFTON,NJ OR FANSTEEL 77,FANSTEEL METALLURGICAL CORPCHICAGO,ILL,DIM.,3.180 IN. NOM LG,1.500 IN. NOM W,0.500 IN. NOM THICK,TWOHOLES 0.208 IN. MIN,0.214 IN. MAX DIA DRILLED THRU 0.450 IN. EITHER SIDE OFVERTICAL CENTERLINE AND 0.480 IN. FROM BOTTOM,ONE HOLE 0.208 IN. MIN,0.214IN. MAX DIA DRILLED THRU ON VERTICAL CENTERLINE 2.830 IN. FROM BOTTOMCORNERS CHAMFERED 0.250 IN. DEEP BY 25 DEG ON BOTTOM,0.250 IN. DEEP BY 40DEG ON TOP,TOP HOLE COUNTERBORED 0.377 IN. DIA BY 0.400 IN. DEEP,TOP WIDTHBEVELED BY 45 DEG ANGLE 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.
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.