The Pulley,groove, cataloged under National Stock Number 3020-00-320-1435, 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 29 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-320-1435 |
| Primary Part Number | 4MVP55B69X1-251 |
| 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 |
| Hub Outside Diameter | 0.250 INCHES NOMINAL BB END IN |
| Hub Outside Diameter | 4.375 INCHES NOMINAL AA END IN |
| Bore Feature | INCLUDED |
| Securing Method | SETSCREW |
| Split Hub Feature | NOT INCLUDED |
| Bore Length | 5.875 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Groove Shape | V |
| Standard V-Belt Section Designation for Which Designed | B |
| Outside Diameter | 7.180 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | PLAIN |
| Pitch Diameter | 5.500 INCHES MINIMUM AND 6.400 INCHES MAXIMUM IN |
| Groove Depth | 1.500 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Bearings | NOT INCLUDED |
| Counterbore Depth | 2.750 INCHES NOMINAL IN |
| Groove Quantity | 4 |
| Counterbore Location | AA END |
| V Groove Angle in Deg | 30.0 |
| Protruding Hub Characteristic | PLAIN |
| Counterbore Diameter | 2.375 INCHES NOMINAL IN |
| Distance From Center of Bore to Bottom of Keyway | 0.745 INCHES NOMINAL IN |
| Securing Hole Quantity | 2 |
| Thread Size | 3/8-16 |
| Keyway Width | 0.250 INCHES NOMINAL IN |
| Unable to Decode | UNABLE TO DECODE AND UNABLE TO DECODE |
| 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 |
|---|---|
| 4MVP55B69X1-251 PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
| 54101S58-123PC1T014 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 3128430PC1T014 | 5/9 Secondary reference U.S. Government activity |
| 51-166-1T014 | 5/9 Secondary reference Bath Iron Works Corporation |
| 54101S58-123PC1T014 | 5/9 Secondary reference U.S. Government activity |
| MTK1609-1-1T14 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-320-1435 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 3020-00-320-1435 has 2 manufacturer part numbers on file: 4MVP55B69X1-251 (Emerson Electric Co Browning Mfg Div), 54101S58-123PC1T014 (Naval Sea Systems Command).
Key specifications for 4MVP55B69X1-251: Integral Cooling Vane: NOT INCLUDED; Hub Outside Diameter: 0.250 INCHES NOMINAL BB END IN; Hub Outside Diameter: 4.375 INCHES NOMINAL AA END IN; Bore Feature: INCLUDED. 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.