The Gear,spur, cataloged under National Stock Number 3020-01-154-8137, 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 L3 Technologies, Inc.. Government technical data includes 6 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3020-01-154-8137 |
| Primary Part Number | 10-1631 ITEM 40 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | L3 Technologies, Inc. |
| Status | ACTIVE |
| Teeth Quantity | 162 |
| Body Style | PLAIN, SOLID |
| Style Designator | HUBLESS |
| Pitch Diameter | 3.3750 INCHES NOMINAL IN |
| Nominal Outside Diameter | 3.417 INCHES IN |
| Face Nominal Width | 0.125 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 |
|---|---|
| 10-1631 ITEM 40 PRIMARY | L3 Technologies, Inc. (USA) |
| A-15497 TYPE 2 PRIMARY | L3 Technologies, Inc. (USA) |
| A-15497 TYPE 1 PRIMARY | L3 Technologies, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 10-1631 | D/9 Drawing number reference only L3 Technologies, Inc. |
| A15497I | C/1 Advisory reference — outside the item-of-supply concept L3 Technologies, Inc. |
NSN 3020-01-154-8137 is a Gear,spur, manufactured by L3 Technologies, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-154-8137 has 3 manufacturer part numbers on file: 10-1631 ITEM 40 (L3 Technologies, Inc.), A-15497 TYPE 2 (L3 Technologies, Inc.), A-15497 TYPE 1 (L3 Technologies, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5935-01-613-3666, 5340-01-677-5543. Verify interchangeability with system specifications before substitution.
Key specifications for 10-1631 ITEM 40: Teeth Quantity: 162; Body Style: PLAIN, SOLID; Style Designator: HUBLESS; Pitch Diameter: 3.3750 INCHES NOMINAL IN. 6 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.