The Sprocket Wheel, cataloged under National Stock Number 3020-00-266-7669, 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 Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 26 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-266-7669 |
| Primary Part Number | 82526BSPC7 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Brinkley Technology Group Llc Dba Hercules Manufacturing |
| Status | ACTIVE |
| Hub Outside Diameter | 2.625 INCHES NOMINAL BOTH ENDS IN |
| Bore Length | 0.938 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Key Width | 0.251 INCHES MINIMUM AND 0.253 INCHES MAXIMUM IN |
| Teeth Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM |
| Tooth Pitch | 0.500 INCHES NOMINAL IN |
| Asa Standard Chain Number | 40 |
| Outside Diameter | 3.442 INCHES MINIMUM AND 3.472 INCHES MAXIMUM IN |
| Keying Facility Type | KEYWAY |
| Quantity | 1 |
| Style Designator | PLAIN |
| Metallic Hardness Rating and Location | 35.0 ROCKWELL C MINIMUM HUB AND 45.0 ROCKWELL C MAXIMUM HUB |
| Material Document and Classification | SAE 1020 ASSN STD SINGLE MATERIAL RESPONSE |
| Pitch Diameter | 3.196 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 20 |
| Hardness Rating Test Method | ROCKWELL |
| Distance From Center of Bore to Bottom of Keyway | 0.870 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Distance From Hub End to Flange End | 0.201 INCHES NOMINAL BB END IN |
| Distance From Hub End to Flange End | 0.452 INCHES NOMINAL AA END IN |
| Keyway Width | 0.253 INCHES NOMINAL IN |
| Bore Diameter | 1.500 INCHES MINIMUM AND 1.505 INCHES MAXIMUM IN |
| Material | STEEL COMP 1020 |
| Furnished Items | KEYING FACILITY |
| Face Width | 0.284 INCHES NOMINAL IN |
| 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 |
|---|---|
| 82526BSPC7 PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| 81543PC82529A PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| 85111S41-2PC616 PRIMARY | Naval Sea Systems Command (USA) |
| 82529A PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| 81550PC82529A PRIMARY | Brinkley Technology Group Llc Dba Hercules Manufacturing (USA) |
| 85111S41-103PC82529A PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 81543PC82529A | 5/9 Secondary reference Hercules Engine Co Inc |
| 82529A | 5/9 Secondary reference Hercules Engine Co Inc |
| S4105-422210PC16 | 3/2 Design control — primary reference U.S. Government activity |
| 82526BSPC7 | 5/9 Secondary reference Hercules Engine Co Inc |
| 85111S41-2PC616 | 5/9 Secondary reference U.S. Government activity |
| 81550PC82529A | 5/9 Secondary reference Hercules Engine Co Inc |
| 85111S41-103PC82529A | 5/9 Secondary reference U.S. Government activity |
NSN 3020-00-266-7669 is a Sprocket Wheel, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-266-7669 has 6 manufacturer part numbers on file: 82526BSPC7 (Brinkley Technology Group Llc Dba Hercules Manufacturing), 81543PC82529A (Brinkley Technology Group Llc Dba Hercules Manufacturing), 85111S41-2PC616 (Naval Sea Systems Command), 82529A (Brinkley Technology Group Llc Dba Hercules Manufacturing), 81550PC82529A (Brinkley Technology Group Llc Dba Hercules Manufacturing) and 1 more.
Key specifications for 82526BSPC7: Hub Outside Diameter: 2.625 INCHES NOMINAL BOTH ENDS IN; Bore Length: 0.938 INCHES NOMINAL IN; Design Form: PLAIN; Key Width: 0.251 INCHES MINIMUM AND 0.253 INCHES MAXIMUM 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.