The Chain,roller, cataloged under National Stock Number 3020-01-419-6330, 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 Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-419-6330 |
| Primary Part Number | 211047181 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Second Chain Link Pin Nominal Diameter | 0.5620 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.2180 INCHES IN |
| First Chain Link Roller Nominal Diameter | 0.8730 INCHES IN |
| Pin Overall Length | 2.2080 INCHES NOMINAL IN |
| Second Chain Link Style | PIN |
| Effective Length | 324.0000 INCHES NOMINAL IN |
| First Chain Link Style | ROLLER |
| Nominal Pitch Distance | 1.500 INCHES IN |
| First Chain Link Plate Width | 1.0000 INCHES NOMINAL IN |
| Pin Fastening Method | HEADED STRAIGHT PIN |
| Second Chain Link Plate Width | 1.0000 INCHES NOMINAL IN |
| Link Row Quantity | 1 |
| First Chain Link Plate Nominal Thickness | 0.2180 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 211047181 PRIMARY | Naval Sea Systems Command (USA) |
| 752-6406835-AY99 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6406835 | D/9 Drawing number reference only Naval Sea Systems Command |
| DF1706-425 AY99 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 3020-01-419-6330 is a Chain,roller, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-419-6330 has 2 manufacturer part numbers on file: 211047181 (Naval Sea Systems Command), 752-6406835-AY99 (Naval Sea Systems Command).
Key specifications for 211047181: Second Chain Link Pin Nominal Diameter: 0.5620 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.2180 INCHES IN; First Chain Link Roller Nominal Diameter: 0.8730 INCHES IN; Pin Overall Length: 2.2080 INCHES NOMINAL IN. 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.
NSN 3020-01-419-6330 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.