The Sprocket Wheel, cataloged under National Stock Number 3020-01-400-5994, 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 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-400-5994 |
| Primary Part Number | 50TB54-1.375 IN.BORE |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Emerson Electric Co Browning Mfg Div |
| Status | ACTIVE |
| Hub Outside Diameter | 3.875 INCHES NOMINAL AA END IN |
| Securing Method | TAPERED-LOCK BUSHING |
| Bore Length | 1.250 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 0.6250 INCHES NOMINAL IN |
| Asa Standard Chain Number | 50-1 |
| Outside Diameter | 11.110 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | PLAIN |
| Pitch Diameter | 10.7490 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 54 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Center of Bore to Bottom of Keyway | 0.8437 INCHES NOMINAL IN |
| Distance From Hub End to Flange End | 0.907 INCHES NOMINAL AA END IN |
| Keyway Width | 0.3125 INCHES NOMINAL IN |
| Bore Diameter | 1.375 INCHES NOMINAL IN |
| Material | STEEL |
| Furnished Items | KEYING FACILITY |
| Face Width | 0.343 INCHES NOMINAL IN |
| Securing Location | BOTH ENDS |
| 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 |
|---|---|
| GS529H1-1.375 IN.BORE | Northrop Grumman Systems Corporation (USA) |
| 50TB54-1.375 IN.BORE PRIMARY | Emerson Electric Co Browning Mfg Div (USA) |
| Reference | Meaning |
|---|---|
| 50TB54-1.375 IN.BORE | 5/9 Secondary reference Emerson Power Transmission Corporation Div Ept |
NSN 3020-01-400-5994 is a Sprocket Wheel, manufactured by Emerson Electric Co Browning Mfg Div, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-400-5994 has 2 manufacturer part numbers on file: GS529H1-1.375 IN.BORE (Northrop Grumman Systems Corporation), 50TB54-1.375 IN.BORE (Emerson Electric Co Browning Mfg Div).
Key specifications for 50TB54-1.375 IN.BORE: Hub Outside Diameter: 3.875 INCHES NOMINAL AA END IN; Securing Method: TAPERED-LOCK BUSHING; Bore Length: 1.250 INCHES NOMINAL IN; Design Form: PLAIN. 24 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.