The Sprocket Wheel, cataloged under National Stock Number 3020-00-288-3400, 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 Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-288-3400 |
| Primary Part Number | 11551P |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| Status | ACTIVE |
| Hub Outside Diameter | 3.500 INCHES NOMINAL BOTH ENDS IN |
| Securing Method | THREADED HOLE(S) |
| Bore Length | 2.250 INCHES NOMINAL IN |
| Design Form | WEBBED |
| Tooth Pitch | 0.500 INCHES NOMINAL IN |
| Outside Diameter | 15.486 INCHES NOMINAL IN |
| Keying Facility Type | KEYWAY |
| Guide Type | GROOVE |
| Quantity | 1 |
| Style Designator | WEBBED OR SPOKED |
| Pitch Diameter | 15.440 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Groove Quantity | 1 |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 97 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Center of Bore to Bottom of Keyway | 1.030 INCHES NOMINAL IN |
| Distance From Hub End to Flange End | 0.500 INCHES NOMINAL BOTH ENDS IN |
| Securing Hole Quantity | 1 |
| Thread Size | 1/2-13 |
| Keyway Width | 0.500 INCHES NOMINAL IN |
| Hole Location | LOCATED ON TOP OF KEY |
| Bore Diameter | 1.748 INCHES MINIMUM AND 1.749 INCHES MAXIMUM IN |
| Material | IRON CAST |
| Furnished Items | GUIDE AND KEYING FACILITY |
| Face Width | 1.250 INCHES NOMINAL IN |
| Securing Location | AA END |
| Groove Position | LOCATED IN CENTER |
| 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 |
|---|---|
| SL8388PC37 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Z665 | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| 11551P PRIMARY | Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA) |
| Reference | Meaning |
|---|---|
| 11551P | 3/9 Design control — primary reference U.S. Government activity |
| SL8388PC37 | 5/9 Secondary reference U.S. Government activity |
| Z665 | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-288-3400 is a Sprocket Wheel, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-288-3400 has 3 manufacturer part numbers on file: SL8388PC37 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), Z665 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 11551P (Curtiss-Wright Electro-Mechanical Corporation Div Epd).
Key specifications for 11551P: Hub Outside Diameter: 3.500 INCHES NOMINAL BOTH ENDS IN; Securing Method: THREADED HOLE(S); Bore Length: 2.250 INCHES NOMINAL IN; Design Form: WEBBED. 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.