The Chain,roller, cataloged under National Stock Number 3020-01-358-6155, 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 Blue Tee Corp. Dba Gefco. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-358-6155 |
| Primary Part Number | XDC-120SC508 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Blue Tee Corp. Dba Gefco |
| Status | ACTIVE |
| Second Chain Link Pin Nominal Diameter | 0.4375 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.1875 INCHES IN |
| First Chain Link Roller Nominal Diameter | 0.8750 INCHES IN |
| Pin Overall Length | 2.1400 INCHES NOMINAL IN |
| Second Chain Link Style | PIN |
| Effective Length | 63.5000 FEET NOMINAL FT |
| Second Chain Link Nominal Width Between Plates | 1.3750 INCHES IN |
| First Chain Link Style | ROLLER |
| First Chain Link Plate Width | 1.425 INCHES NOMINAL IN |
| Pin Fastening Method | COTTER PIN |
| Second Chain Link Plate Width | 1.230 INCHES NOMINAL IN |
| First Chain Link Nominal Width Between Plates | 1.0000 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL |
| First Chain Link Plate Nominal Thickness | 0.1875 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 |
|---|---|
| XDC-120SC508 PRIMARY | Blue Tee Corp. Dba Gefco (USA) |
| Reference | Meaning |
|---|---|
| 120SC508 | 5/9 Secondary reference Diamond Chain Co Div of Amsted Industries Inc |
NSN 3020-01-358-6155 is a Chain,roller, manufactured by Blue Tee Corp. Dba Gefco, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-358-6155 has 1 manufacturer part number on file: XDC-120SC508 (Blue Tee Corp. Dba Gefco).
Key specifications for XDC-120SC508: Second Chain Link Pin Nominal Diameter: 0.4375 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.1875 INCHES IN; First Chain Link Roller Nominal Diameter: 0.8750 INCHES IN; Pin Overall Length: 2.1400 INCHES NOMINAL IN. 15 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.