The Sprocket Wheel, cataloged under National Stock Number 3020-01-259-8186, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-259-8186 |
| Primary Part Number | 233-0265-080 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Hub Outside Diameter | 4.250 INCHES NOMINAL AA END IN |
| Securing Method | THREADED HOLE(S) |
| Bore Length | 3.000 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 0.453 INCHES NOMINAL IN |
| Outside Diameter | 7.820 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | PLAIN |
| Pitch Diameter | 7.413 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 3 |
| Teeth Quantity Per Row | 31 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Center of Bore to Bottom of Keyway | 1.320 INCHES NOMINAL IN |
| Distance From Hub End to Flange End | 0.762 INCHES NOMINAL AA END IN |
| Securing Hole Quantity | 2 |
| Thread Size | 3/8-24 |
| Center to Center Distance Between Teeth Rows | 0.897 INCHES NOMINAL IN |
| Keyway Width | 0.500 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM |
| Hole Location | ON HUB 90 DEGREES APART |
| Bore Diameter | 2.188 INCHES NOMINAL IN |
| Material | STEEL |
| Furnished Items | KEYING FACILITY |
| Face Width | 2.238 INCHES NOMINAL IN |
| Furnished Items and Quantity | TWO SETSCREWS |
| Securing Location | AA END |
| 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 |
|---|---|
| 233-0265-080 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| 233-0265 | 7/1 Vendor item drawing reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| 233-0265-080 | 5/9 Secondary reference Martin Sprocket and Gear Inc |
NSN 3020-01-259-8186 is a Sprocket Wheel, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-259-8186 has 1 manufacturer part number on file: 233-0265-080 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-259-8960. Verify interchangeability with system specifications before substitution.
Key specifications for 233-0265-080: Hub Outside Diameter: 4.250 INCHES NOMINAL AA END IN; Securing Method: THREADED HOLE(S); Bore Length: 3.000 INCHES NOMINAL IN; Design Form: PLAIN. 29 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.