The Pulley,groove, cataloged under National Stock Number 3020-01-407-9373, 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 Emerson Electric Co Browning Mfg Div. Government technical data includes 26 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-407-9373 |
| Primary Part Number | 2VP50-1 1/8IN.BORE |
| Item Name | Pulley,groove |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Emerson Electric Co Browning Mfg Div |
| Status | ACTIVE |
| Integral Cooling Vane | NOT INCLUDED |
| Bore Feature | INCLUDED |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 3.000 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Shape | V |
| Standard V-Belt Section Designation for Which Designed | 3L AND 4L AND 5L AND A AND B |
| Outside Diameter | 4.750 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | PLAIN |
| Groove Depth | 0.490 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Groove Quantity | 2 |
| V Groove Angle in Deg | 34.0 |
| Distance From Center of Bore to Bottom of Keyway | 0.6875 INCHES NOMINAL IN |
| Keyway Width | 0.250 INCHES NOMINAL IN |
| Distance From Outside Flange/rim to Hub End and Location | 0.438 INCHES NOMINAL BOTH ENDS IN |
| Counterbore Feature | NOT INCLUDED |
| Bore Diameter | 1.125 INCHES NOMINAL IN |
| Material | IRON CAST OVERALL |
| Furnished Items | KEYING FACILITY |
| Face Width | 1.375 INCHES MINIMUM AND 2.125 INCHES MAXIMUM IN |
| Groove Width | 0.500 INCHES MINIMUM AND 0.875 INCHES MAXIMUM 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 |
|---|---|
| 2VP50-1 1/8IN.BORE PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
| Reference | Meaning |
|---|---|
| 2VP50-1 1/8INBO | C/1 Advisory reference — outside the item-of-supply concept Emerson Electric Co Browning Mfg Div |
| 1023-02-D | D/9 Drawing number reference only Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| 1023-02-D P 9 | 5/9 Secondary reference Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| 2VP50 | C/1 Advisory reference — outside the item-of-supply concept Emerson Electric Co Browning Mfg Div |
| 32-490-035 | 5/9 Secondary reference Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| 2VP50-1 1/8IN | C/1 Advisory reference — outside the item-of-supply concept Emerson Electric Co Browning Mfg Div |
NSN 3020-01-407-9373 is a Pulley,groove, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-407-9373 has 1 manufacturer part number on file: 2VP50-1 1/8IN.BORE (Emerson Electric Co Browning Mfg Div).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-412-9588, 3020-01-418-2070. Verify interchangeability with system specifications before substitution.
Key specifications for 2VP50-1 1/8IN.BORE: Integral Cooling Vane: NOT INCLUDED; Bore Feature: INCLUDED; Split Hub Feature: NOT INCLUDED; Bore Length: 3.000 INCHES NOMINAL IN. 26 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.