The Chain,silent, cataloged under National Stock Number 3020-00-376-7779, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-376-7779 |
| Item Name | Chain,silent |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Link Style | SIDE GUIDES |
| Link Nominal Width | 2.0000 INCHES IN |
| Effective Length | 0.6667 FEET NOMINAL FT |
| Nominal Pitch Distance | 0.500 INCHES IN |
| Minimum Tensile Strength | 10000 POUNDS PER SQUARE INCH LBS |
| Link Row Quantity | 32 |
| Material | STEEL |
| Link Nominal Width Between Plates | 2.0000 INCHES 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 |
|---|---|
| R4786PC29 | 5/9 Secondary reference Ames Iron Works |
| 174 | 5/9 Secondary reference General Signal Corp |
| 174 | 5/9 Secondary reference Aurora Pump a Unit of General Signal Corp |
| 4ACHAIN | 3/9 Design control — primary reference Ramsey Products Corp |
NSN 3020-00-376-7779 is a Chain,silent, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-376-7779: Link Style: SIDE GUIDES; Link Nominal Width: 2.0000 INCHES IN; Effective Length: 0.6667 FEET NOMINAL FT; Nominal Pitch Distance: 0.500 INCHES IN. 8 specifications are 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.