The Holdown Plate Assy, cataloged under National Stock Number 1680-00-477-4491, is classified within Federal Supply Class 1680 (Miscellaneous Aircraft Accessories and 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 1680-00-477-4491 |
| Primary Part Number | S6190-60104-1 |
| Item Name | Holdown Plate Assy |
| FSC / FSG | 1680 / 16 — Miscellaneous Aircraft Accessories and Components |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| General Characteristics Item Description | 5.000 IN. LG; 2.094 IN. TO 2.125 IN. W; THREE HOLES 0.218 IN. DIA; 0.060 IN. CORNER RADIUS 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 |
| Part Number | Manufacturer |
|---|---|
| S6190-60104-1 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| S6190-60104-1 | 5/9 Secondary reference Bridgestone Americas Tire Operations, Llc |
NSN 1680-00-477-4491 is a Holdown Plate Assy, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 1680, Miscellaneous Aircraft Accessories and Components. Status: active.
NSN 1680-00-477-4491 has 1 manufacturer part number on file: S6190-60104-1 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for S6190-60104-1: General Characteristics Item Description: 5.000 IN. LG; 2.094 IN. TO 2.125 IN. W; THREE HOLES 0.218 IN. DIA; 0.060 IN. CORNER RADIUS 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 1680-00-477-4491 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.