The Chain,roller, cataloged under National Stock Number 3020-01-577-7787, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Emerson Power Transmission Corporation Div Ept. Government technical data includes 5 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-577-7787 |
| Primary Part Number | 40RIV |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Emerson Power Transmission Corporation Div Ept |
| Status | ACTIVE |
| Pin Overall Length | 0.6300 INCHES MINIMUM IN |
| Nominal Pitch Distance | 0.500 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL |
| Breaking Strength | 700.0 HARNESS GROUP 3 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 40RIV PRIMARY | Emerson Power Transmission Corporation Div Ept (USA) |
NSN 3020-01-577-7787 is a Chain,roller, manufactured by Emerson Power Transmission Corporation Div Ept, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-577-7787 has 1 manufacturer part number on file: 40RIV (Emerson Power Transmission Corporation Div Ept).
Key specifications for 40RIV: Pin Overall Length: 0.6300 INCHES MINIMUM IN; Nominal Pitch Distance: 0.500 INCHES IN; Link Row Quantity: 1; Material: STEEL. 5 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.