The Chain,roller, cataloged under National Stock Number 3020-01-181-3975, 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 16 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 | 3020-01-181-3975 |
| Primary Part Number | X1233-100P |
| 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 |
| Second Chain Link Pin Nominal Diameter | 0.2340 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.0940 INCHES IN |
| First Chain Link Roller Nominal Diameter | 0.4690 INCHES IN |
| Pin Overall Length | 1.2300 INCHES NOMINAL IN |
| Second Chain Link Style | PIN |
| Effective Length | 6.2500 FEET NOMINAL FT |
| Second Chain Link Nominal Width Between Plates | 0.3125 INCHES IN |
| First Chain Link Style | ROLLER |
| First Chain Link Plate Width | 0.712 INCHES NOMINAL IN |
| Pin Fastening Method | COTTER PIN AND RIVETED |
| Second Chain Link Plate Width | 0.615 INCHES NOMINAL IN |
| Minimum Tensile Strength | 8500 POUNDS PER SQUARE INCH LBS |
| First Chain Link Nominal Width Between Plates | 0.3125 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL |
| First Chain Link Plate Nominal Thickness | 0.0940 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 |
|---|---|
| X1233-100P PRIMARY | Diamond Chain Co Div of Amsted Industries Inc (USA) |
| 433X5/8 | Diamond Chain Co Div of Amsted Industries Inc (USA) |
NSN 3020-01-181-3975 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 3020-01-181-3975 has 2 manufacturer part numbers on file: X1233-100P (Diamond Chain Co Div of Amsted Industries Inc), 433X5/8 (Diamond Chain Co Div of Amsted Industries Inc).
Key specifications for X1233-100P: Second Chain Link Pin Nominal Diameter: 0.2340 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.0940 INCHES IN; First Chain Link Roller Nominal Diameter: 0.4690 INCHES IN; Pin Overall Length: 1.2300 INCHES NOMINAL IN. 16 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.