The Chain,roller, cataloged under National Stock Number 3020-01-026-6733, 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 Kalmar AC Inc. Government technical data includes 13 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 | 3020-01-026-6733 |
| Primary Part Number | 4719958-3 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Kalmar AC Inc |
| Status | ACTIVE |
| Second Chain Link Pin Nominal Diameter | 0.3750 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.1560 INCHES IN |
| First Chain Link Roller Nominal Diameter | 0.7500 INCHES IN |
| Second Chain Link Style | PIN |
| Effective Length | 5.3125 FEET NOMINAL FT |
| Second Chain Link Nominal Width Between Plates | 1.0620 INCHES IN |
| First Chain Link Style | ROLLER |
| First Chain Link Plate Width | 1.187 INCHES NOMINAL IN |
| Second Chain Link Plate Width | 1.025 INCHES NOMINAL IN |
| First Chain Link Nominal Width Between Plates | 0.7500 INCHES IN |
| Link Row Quantity | 3 |
| Material | STEEL |
| First Chain Link Plate Nominal Thickness | 0.1560 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 |
NSN 3020-01-026-6733 is a Chain,roller, manufactured by Kalmar AC Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-026-6733 has 2 manufacturer part numbers on file: 4719958 (Kalmar AC Inc), 4719958-3 (Kalmar AC Inc).
Key specifications for 4719958-3: Second Chain Link Pin Nominal Diameter: 0.3750 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.1560 INCHES IN; First Chain Link Roller Nominal Diameter: 0.7500 INCHES IN; Second Chain Link Style: PIN. 13 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.