The Torque Bar Assembly, cataloged under National Stock Number 1560-01-315-4591, is classified within Federal Supply Class 1560 (Airframe Structural Components) of the Aircraft and Airframe Components group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1560-01-315-4591 |
| Primary Part Number | LM303-276 |
| Item Name | Torque Bar Assembly |
| FSC / FSG | 1560 / 15 — Airframe Structural Components |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| FSC Application Data | MOUNT,ENGINE |
| General Characteristics Item Description | 10.620 IN. O/A L; BAR,ALLOY STEEL,CADMIUM PLATED; SHIMS,ALLOY STEEL; PLATES,NYLON; BEARING,STAINLESS STEEL WITH POLYTETRAFLUOROETHYLENE LINER; ELASTOMER,RUBBER IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| LM303-276 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| LM303-276 | 5/9 Secondary reference Lord Corporation Dba Lord Corp |
NSN 1560-01-315-4591 is a Torque Bar Assembly, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 1560, Airframe Structural Components. Status: active.
NSN 1560-01-315-4591 has 1 manufacturer part number on file: LM303-276 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for LM303-276: FSC Application Data: MOUNT,ENGINE; General Characteristics Item Description: 10.620 IN. O/A L; BAR,ALLOY STEEL,CADMIUM PLATED; SHIMS,ALLOY STEEL; PLATES,NYLON; BEARING,STAINLESS STEEL WITH POLYTETRAFLUOROETHYLENE LINER; ELASTOMER,RUBBER IN; End Item Identification: CH-53E ACFT. 2 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 1560-01-315-4591 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.