The Cover,main Rotor Control Lock, cataloged under National Stock Number 1650-00-630-4574, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1650-00-630-4574 |
| Primary Part Number | S1565-20456-2 |
| Item Name | Cover,main Rotor Control Lock |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,QQ-A-603 COMP 3; 3.188 IN. LG; 1.156 IN. HT; ONE END THREADED 0.875-20 UNEF 2A PER SPEC MIL-S-7742 A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| S1565-20456-2 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| S1565-20456-2 | S & L Aerospace Metals Llc (USA) |
| Reference | Meaning |
|---|---|
| S1565-20456 | D/9 Drawing number reference only Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
NSN 1650-00-630-4574 is a Cover,main Rotor Control Lock, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-630-4574 has 2 manufacturer part numbers on file: S1565-20456-2 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), S1565-20456-2 (S & L Aerospace Metals Llc).
Key specifications for S1565-20456-2: General Characteristics Item Description: ALUMINUM ALLOY,QQ-A-603 COMP 3; 3.188 IN. LG; 1.156 IN. HT; ONE END THREADED 0.875-20 UNEF 2A PER SPEC MIL-S-7742 A; End Item Identification: SIKORSKY AIRCRAFT MODELS HSS-2 AND HR2S-1. 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 1650-00-630-4574 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.