The Chain,roller, cataloged under National Stock Number 3020-01-323-1256, 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 Milcor Inc. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-323-1256 |
| Primary Part Number | SN47787/21-02-03-075 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Milcor Inc |
| Status | ACTIVE |
| Second Chain Link Pin Nominal Diameter | 0.3125 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.1250 INCHES IN |
| First Chain Link Roller Nominal Diameter | 0.6250 INCHES IN |
| Second Chain Link Style | PIN |
| Effective Length | 5.1667 FEET NOMINAL FT |
| Second Chain Link Nominal Width Between Plates | 0.8750 INCHES IN |
| First Chain Link Style | ROLLER |
| First Chain Link Plate Width | 0.950 INCHES NOMINAL IN |
| Pin Fastening Method | COTTER PIN |
| Second Chain Link Plate Width | 0.820 INCHES NOMINAL IN |
| First Chain Link Nominal Width Between Plates | 0.6250 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL |
| First Chain Link Plate Nominal Thickness | 0.1250 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 |
| Part Number | Manufacturer |
|---|---|
| SN47787/21-02-03-075 PRIMARY | Milcor Inc (USA) |
| NO.80-62 IN. | Diamond Chain Co Div of Amsted Industries Inc (USA) |
NSN 3020-01-323-1256 is a Chain,roller, manufactured by Milcor Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-323-1256 has 2 manufacturer part numbers on file: SN47787/21-02-03-075 (Milcor Inc), NO.80-62 IN. (Diamond Chain Co Div of Amsted Industries Inc).
Key specifications for SN47787/21-02-03-075: Second Chain Link Pin Nominal Diameter: 0.3125 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.1250 INCHES IN; First Chain Link Roller Nominal Diameter: 0.6250 INCHES IN; Second Chain Link Style: PIN. 14 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.