The Gear,spur, cataloged under National Stock Number 3020-01-490-7364, 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 Natural Gas Solutions North America Llc Div Industrial Products Group. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-490-7364 |
| Primary Part Number | 20-21 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Natural Gas Solutions North America Llc Div Industrial Products Group |
| Status | ACTIVE |
| Keyway Nominal Width | 0.251 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 1.1270 INCHES BOTH ENDS IN |
| Teeth Quantity | 39 |
| Body Style | PLAIN, SOLID |
| Bore Style | W/ 2 KEYWAYS BOTH ENDS |
| Precision Classification | QUALITY NUMBER 8 |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | HUBLESS |
| Material Document and Classification | AISI 4340 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.3250 INCHES NOMINAL IN |
| Nominal Outside Diameter | 3.4050 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.6800 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4340 OVERALL |
| Face Nominal Width | 0.7500 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 |
|---|---|
| 110-34-1 LOC. 2 | Natural Gas Solutions North America Llc Div Industrial Products Group (USA) |
| 20-21 PRIMARY | Natural Gas Solutions North America Llc Div Industrial Products Group (USA) |
| Reference | Meaning |
|---|---|
| 20-21 | 5/9 Secondary reference Texsteam Inc Dba Txt or Rcs or Texsteam |
| 110-34-1 LOC. 2 | 5/9 Secondary reference Texsteam Inc Dba Txt or Rcs or Texsteam |
NSN 3020-01-490-7364 is a Gear,spur, manufactured by Natural Gas Solutions North America Llc Div Industrial Products Group, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-490-7364 has 2 manufacturer part numbers on file: 110-34-1 LOC. 2 (Natural Gas Solutions North America Llc Div Industrial Products Group), 20-21 (Natural Gas Solutions North America Llc Div Industrial Products Group).
Key specifications for 20-21: Keyway Nominal Width: 0.251 INCHES BOTH ENDS IN; Bore Nominal Diameter: 1.1270 INCHES BOTH ENDS IN; Teeth Quantity: 39; Body Style: PLAIN, SOLID. 15 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.