The Chain,roller, cataloged under National Stock Number 3020-01-388-5510, 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 Us Army Aviation and Missile Command. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-388-5510 |
| Primary Part Number | 10278576-1 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Second Chain Link Plate Nominal Thickness | 0.0150 INCHES IN |
| Surface Treatment Document and Classification | QQ-P-35 TYPE I,II,III,OR VI FED SPEC SINGLE TREATMENT RESPONSE |
| Second Chain Link Bushing Nominal Outside Diameter | 0.0900 INCHES IN |
| Second Chain Link Style | ROLLERLESS |
| Effective Length | 2.9992 FEET NOMINAL FT |
| Second Chain Link Nominal Width Between Plates | 0.0720 INCHES IN |
| First Chain Link Style | PIN |
| First Chain Link Pin Nominal Diameter | 0.0620 INCHES IN |
| Nominal Pitch Distance | 0.1475 INCHES IN |
| First Chain Link Plate Width | 0.138 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE |
| Second Chain Link Plate Width | 0.138 INCHES NOMINAL IN |
| First Chain Link Nominal Width Between Plates | 0.1020 INCHES IN |
| Link Row Quantity | 1 |
| Material | STEEL CORROSION RESISTING |
| First Chain Link Plate Nominal Thickness | 0.0150 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 |
|---|---|
| 10278576-1 PRIMARY | Us Army Aviation and Missile Command (USA) |
| EL-24.4-P | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| Reference | Meaning |
|---|---|
| 10278576 | 7/1 Vendor item drawing reference Us Army Aviation and Missile Command |
NSN 3020-01-388-5510 is a Chain,roller, manufactured by Us Army Aviation and Missile Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-388-5510 has 2 manufacturer part numbers on file: 10278576-1 (Us Army Aviation and Missile Command), EL-24.4-P (Roller Bearing Co of America, Inc Div Pic Design).
Key specifications for 10278576-1: Second Chain Link Plate Nominal Thickness: 0.0150 INCHES IN; Surface Treatment Document and Classification: QQ-P-35 TYPE I,II,III,OR VI FED SPEC SINGLE TREATMENT RESPONSE; Second Chain Link Bushing Nominal Outside Diameter: 0.0900 INCHES IN; Second Chain Link Style: ROLLERLESS. 16 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.