The Chain,cable, cataloged under National Stock Number 3020-01-239-5306, 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 Northrop Grumman Systems Corporation. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-239-5306 |
| Primary Part Number | 821178-1 |
| Item Name | Chain,cable |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Link Jacket Height | 0.1880 INCHES IN |
| Link Style | SINGLE DRIVE LINK |
| Link Nominal Width | 0.2188 INCHES IN |
| Effective Length | 1.0340 FEET NOMINAL FT |
| Nominal Pitch Distance | 0.188 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL CORROSION RESISTING |
| 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 |
|---|---|
| 821178-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 821178 | 7/1 Vendor item drawing reference Northrop Grumman Systems Corporation |
| 821178-1 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-01-239-5306 is a Chain,cable, manufactured by Northrop Grumman Systems Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-239-5306 has 1 manufacturer part number on file: 821178-1 (Northrop Grumman Systems Corporation).
Key specifications for 821178-1: Link Jacket Height: 0.1880 INCHES IN; Link Style: SINGLE DRIVE LINK; Link Nominal Width: 0.2188 INCHES IN; Effective Length: 1.0340 FEET NOMINAL FT. 7 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.