The Pulley,groove, cataloged under National Stock Number 3020-01-040-7122, 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 Arvan, Inc. Dba Aerospace Division. Government technical data includes 27 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-040-7122 |
| Primary Part Number | BACP30-K2S |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Arvan, Inc. Dba Aerospace Division |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Hub Outside Diameter | 0.490 INCHES NOMINAL BOTH ENDS IN |
| Bore Feature | INCLUDED |
| Bearing Quantity | 1 |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 0.625 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Radius | 0.128 INCHES NOMINAL IN |
| Groove Shape | U |
| Outside Diameter | 5.500 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Groove Depth | 0.312 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | INCLUDED |
| Groove Quantity | 1 |
| Protruding Hub Characteristic | PLAIN |
| Bearing Type | BALL |
| Unable to Decode | UNABLE TO DECODE |
| Distance From Outside Flange/rim to Hub End and Location | 0.059 INCHES NOMINAL BOTH ENDS IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 0.312 INCHES NOMINAL IN |
| Material | PLASTIC PHENOLIC BODY |
| Material | STEEL HUB |
| Unable to Decode | UNABLE TO DECODE |
| Face Width | 0.507 INCHES NOMINAL IN |
| Groove Width | 0.340 INCHES NOMINAL IN |
| Lightening Hole | NOT INCLUDED |
| 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 |
|---|---|
| BACP30-K2S PRIMARY | Arvan, Inc. Dba Aerospace Division (USA) |
| Reference | Meaning |
|---|---|
| 1967-24-501 | 5/9 Secondary reference Arvan, Inc. Dba Aerospace Division |
| 1967-24 | D/9 Drawing number reference only Arvan, Inc. Dba Aerospace Division |
| DACP30-K2S | 5/9 Secondary reference Arvan, Inc. Dba Aerospace Division |
NSN 3020-01-040-7122 is a Pulley,groove, manufactured by Arvan, Inc. Dba Aerospace Division, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-040-7122 has 1 manufacturer part number on file: BACP30-K2S (Arvan, Inc. Dba Aerospace Division).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-071-0799. Verify interchangeability with system specifications before substitution.
Key specifications for BACP30-K2S: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 0.490 INCHES NOMINAL BOTH ENDS IN; Bore Feature: INCLUDED; Bearing Quantity: 1. 27 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.