The Gear,spur, cataloged under National Stock Number 3020-00-905-5503, 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 Bae Systems Information and Electronic Systems Integration Inc.. Government technical data includes 17 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-905-5503 |
| Primary Part Number | 91000341 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Bae Systems Information and Electronic Systems Integration Inc. |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.500 INCHES BOTH ENDS IN |
| Backlash Designation | GRADE C |
| Teeth Quantity | 180 |
| Body Style | PLAIN, WITH LIGHTENING HOLES |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 4 PLAIN AXIALLY THROUGH BODY FIRST END |
| Precision Classification | QUALITY NUMBER 10 |
| Mounting Hole Nominal Diameter | 0.138 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Style Designator | HUBLESS |
| Material Document and Classification | QQ-B-626,COMP 11,1/2H FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.7500 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Nominal Outside Diameter | 3.791 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | COPPER ALLOY OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.187 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 |
|---|---|
| 91000341 PRIMARY | Bae Systems Information and Electronic Systems Integration Inc. (USA) |
NSN 3020-00-905-5503 is a Gear,spur, manufactured by Bae Systems Information and Electronic Systems Integration Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-905-5503 has 1 manufacturer part number on file: 91000341 (Bae Systems Information and Electronic Systems Integration Inc.).
Key specifications for 91000341: Bore Nominal Diameter: 0.500 INCHES BOTH ENDS IN; Backlash Designation: GRADE C; Teeth Quantity: 180; Body Style: PLAIN, WITH LIGHTENING HOLES. 17 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.