The Chain,roller, cataloged under National Stock Number 3020-01-453-3267, 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 Diamond Chain Co Div of Amsted Industries Inc. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-453-3267 |
| Primary Part Number | NO.40-2 57 PITCHES |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Diamond Chain Co Div of Amsted Industries Inc |
| Status | ACTIVE |
| Effective Length | 28.5000 INCHES NOMINAL IN |
| Nominal Pitch Distance | 0.500 INCHES IN |
| Material | STEEL |
| 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 |
|---|---|
| NO.40-2 57 PITCHES PRIMARY | Diamond Chain Co Div of Amsted Industries Inc (USA) |
| 40-2X57LINK PRIMARY | Aerogo, Inc Dba Aerogo Inc (USA) |
| Reference | Meaning |
|---|---|
| NO.40-2 57 PITCHES | 5/9 Secondary reference Rexnord Industries Inc. Div Roller Chain Operation |
| 6304357 FIND 40 | 5/2 Secondary reference U.S. Government activity |
| 6304357 | D/9 Drawing number reference only U.S. Government activity |
| NO.40-2 57 PITCHES | 5/9 Secondary reference Emerson Power Transmission Corporation Div Ept |
NSN 3020-01-453-3267 is a Chain,roller, manufactured by Diamond Chain Co Div of Amsted Industries Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-453-3267 has 2 manufacturer part numbers on file: NO.40-2 57 PITCHES (Diamond Chain Co Div of Amsted Industries Inc), 40-2X57LINK (Aerogo, Inc Dba Aerogo Inc).
Key specifications for NO.40-2 57 PITCHES: Effective Length: 28.5000 INCHES NOMINAL IN; Nominal Pitch Distance: 0.500 INCHES IN; End Item Identification: ELCAS (M) TURNTABLE PNEUMATIC EQUIPMENT; Material: STEEL. 3 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.