The Chain,roller, cataloged under National Stock Number 3020-01-415-1048, 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 Altra Industrial Motion Corp.. Government technical data includes 15 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-415-1048 |
| Primary Part Number | 40SL-41IN. |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Altra Industrial Motion Corp. |
| Status | ACTIVE |
| Second Chain Link Pin Nominal Diameter | 0.1562 INCHES IN |
| Second Chain Link Plate Nominal Thickness | 0.0600 INCHES IN |
| First Chain Link Roller Nominal Diameter | 0.3125 INCHES IN |
| Second Chain Link Style | PIN |
| Second Chain Link Nominal Width Between Plates | 0.4325 INCHES IN |
| First Chain Link Style | ROLLER |
| Nominal Pitch Distance | 0.500 INCHES IN |
| First Chain Link Plate Width | 0.4750 INCHES NOMINAL IN |
| Pin Fastening Method | RIVETED AND SPRING CLIP |
| Second Chain Link Plate Width | 0.4100 INCHES NOMINAL IN |
| Minimum Tensile Strength | 3000 POUNDS PER SQUARE INCH LBS |
| First Chain Link Nominal Width Between Plates | 0.3125 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL |
| First Chain Link Plate Nominal Thickness | 0.0600 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 |
|---|---|
| 40SL-41IN. | Altra Industrial Motion Corp. (USA) |
| 40 LL R L | Emerson Electric Co Browning Mfg Div (USA) |
| Reference | Meaning |
|---|---|
| Z20065P023 | 3/2 Design control — primary reference U.S. Government activity |
| 40LL-41IN. | 5/9 Secondary reference Emerson Electric Co Browning Mfg Div |
| 40SB-41IN. | 5/9 Secondary reference Emerson Power Transmission Corporation Div Ept |
| H20065V001 | D/9 Drawing number reference only U.S. Government activity |
| H20065V001 ITEM 16 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-01-415-1048 is a Chain,roller, manufactured by Altra Industrial Motion Corp., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-415-1048 has 2 manufacturer part numbers on file: 40SL-41IN. (Altra Industrial Motion Corp.), 40 LL R L (Emerson Electric Co Browning Mfg Div).
2 possible matches (shared part number, not a government interchangeability claim): 3010-01-415-9511, 3010-01-415-9515. Verify interchangeability with system specifications before substitution.
Key specifications for 40SL-41IN.: Second Chain Link Pin Nominal Diameter: 0.1562 INCHES IN; Second Chain Link Plate Nominal Thickness: 0.0600 INCHES IN; First Chain Link Roller Nominal Diameter: 0.3125 INCHES IN; Second Chain Link Style: PIN. 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.