The Gear,internal, cataloged under National Stock Number 3020-00-402-9774, 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 Roller Bearing Co of America, Inc Div Pic Design. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-402-9774 |
| Primary Part Number | BY1-70 |
| Item Name | Gear,internal |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Roller Bearing Co of America, Inc Div Pic Design |
| Status | ACTIVE |
| Teeth Quantity | 35 |
| Body Style | PLAIN, SOLID |
| Teeth Type | SPUR |
| Style Designator | PLAIN RING |
| Pitch Diameter | 1.4583 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Pressure Angle | 20.0000 DEGREES |
| 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 |
|---|---|
| BY1-70 PRIMARY | Roller Bearing Co of America, Inc Div Pic Design (USA) |
| Reference | Meaning |
|---|---|
| 60752-1 | 5/9 Secondary reference U.S. Government activity |
| 60752-1 | 7/2 Vendor item drawing reference L3harris Technologies, Inc. |
NSN 3020-00-402-9774 is a Gear,internal, manufactured by Roller Bearing Co of America, Inc Div Pic Design, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-402-9774 has 1 manufacturer part number on file: BY1-70 (Roller Bearing Co of America, Inc Div Pic Design).
2 possible matches (shared part number, not a government interchangeability claim): 3030-00-775-8848, 6117-01-594-5419. Verify interchangeability with system specifications before substitution.
Key specifications for BY1-70: Teeth Quantity: 35; Body Style: PLAIN, SOLID; Teeth Type: SPUR; Style Designator: PLAIN RING. 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.