The Chain,roller, cataloged under National Stock Number 3020-01-438-3003, 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. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Chain,roller |
| FSC / FSG | 3020 — Gears, Pulleys, Sprockets, and Transmission Chain (FSG 30) |
| Manufacturers | Pyser Sgi Limited (CAGE U3097); Diamond Chain Co Div of Amsted Industries Inc (CAGE 72625) |
| Parameter | Value |
|---|---|
| NSN | 3020-01-438-3003 |
| Primary Part Number | XAU-1147-D DBA |
| 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 |
| 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 |
|---|---|
| C27464-182 | Pyser Sgi Limited (GBR) |
| XAU-1147-D DBA PRIMARY | Diamond Chain Co Div of Amsted Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| C27464-182 | 5/9 Secondary reference Richards Imagery Interpretation Systems, L.l.c. |
NSN 3020-01-438-3003 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 3020-01-438-3003 has 2 manufacturer part numbers on file: C27464-182 (Pyser Sgi Limited), XAU-1147-D DBA (Diamond Chain Co Div of Amsted Industries Inc).
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.