The Chain,roller, cataloged under National Stock Number 3020-00-706-3976, 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 Heil Environmental Industries. Government technical data includes 10 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-706-3976 |
| Primary Part Number | 20X30L69 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Heil Environmental Industries |
| Status | ACTIVE |
| FSC Application Data | PROPELLER SHAFT POWER TAKE-OFF SPROCKET,TRUCK |
| Link Plate Nominal Thickness | 0.1250 INCHES IN |
| Link Plate Width at Pin End | 0.812 INCHES NOMINAL IN |
| Link Pin Nominal Diameter | 0.3120 INCHES IN |
| Effective Length | 2.5000 FEET NOMINAL FT |
| Link Roller Nominal Diameter | 0.6250 INCHES IN |
| Minimum Tensile Strength | 14500 POUNDS PER SQUARE INCH LBS |
| Material | STEEL |
| Link Nominal Width Between Plates | 0.6250 INCHES IN |
| Link Plate Width | 0.950 INCHES NOMINAL 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 |
|---|---|
| 7063976 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 20X30L69 PRIMARY | Heil Environmental Industries (USA) |
| Reference | Meaning |
|---|---|
| 416010 | 5/9 Secondary reference White Motor Corp |
| 256295 | 5/9 Secondary reference Brockway Motor Trucks Div of Mack Trucks Inc |
NSN 3020-00-706-3976 is a Chain,roller, manufactured by Heil Environmental Industries, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-706-3976 has 2 manufacturer part numbers on file: 7063976 (U S Army Tank Automotive Command Amsta-Im-Mm), 20X30L69 (Heil Environmental Industries).
2 possible matches (shared part number, not a government interchangeability claim): 4920-01-550-7726, 5995-01-725-4353. Verify interchangeability with system specifications before substitution.
Key specifications for 20X30L69: FSC Application Data: PROPELLER SHAFT POWER TAKE-OFF SPROCKET,TRUCK; Link Plate Nominal Thickness: 0.1250 INCHES IN; Link Plate Width at Pin End: 0.812 INCHES NOMINAL IN; Link Pin Nominal Diameter: 0.3120 INCHES IN. 10 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.