The Gear,spur, cataloged under National Stock Number 3020-01-170-0832, 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 Stone Construction Equipment, Inc.. Government technical data includes 16 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. 3 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 | 3020-01-170-0832 |
| Primary Part Number | 26921 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Stone Construction Equipment, Inc. |
| Status | ACTIVE |
| Keyway Nominal Width | 0.063 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.500 INCHES FIRST END IN |
| Hub Nominal Diameter | 1.500 INCHES SECOND END IN |
| Nominal Distance Between Body Face and Recessed Hub End | 0.250 INCHES BOTH ENDS IN |
| Teeth Quantity | 54 |
| Body Style | WEBBED, SOLID |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Style Designator | RECESSED HUBS |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1045 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.5000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 4.666 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 1045 OVERALL |
| Face Nominal Width | 0.750 INCHES 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 |
|---|---|
| 26921 PRIMARY | Stone Construction Equipment, Inc. (USA) |
NSN 3020-01-170-0832 is a Gear,spur, manufactured by Stone Construction Equipment, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-170-0832 has 1 manufacturer part number on file: 26921 (Stone Construction Equipment, Inc.).
3 possible matches (shared part number, not a government interchangeability claim): 4810-01-170-9526, 5315-01-469-5988, 6520-01-714-2789. Verify interchangeability with system specifications before substitution.
Key specifications for 26921: Keyway Nominal Width: 0.063 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.500 INCHES FIRST END IN; Hub Nominal Diameter: 1.500 INCHES SECOND END IN; Nominal Distance Between Body Face and Recessed Hub End: 0.250 INCHES BOTH ENDS IN. 16 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.