The Gear,spur, cataloged under National Stock Number 3020-00-283-4987, 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 Aero Precision Industries Llc. Government technical data includes 19 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-283-4987 |
| Primary Part Number | 699157 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Aero Precision Industries Llc |
| Status | ACTIVE |
| Keyway Nominal Width | 0.068 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.437 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.719 INCHES BOTH ENDS IN |
| Backlash Designation | GRADE A |
| Teeth Quantity | 38 |
| Body Style | WEBBED, WITH LIGHTENING HOLES |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Precision Classification | QUALITY NUMBER 10 |
| Hardness Rating | 89.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 915.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM OVERALL |
| Style Designator | PROTRUDING HUBS |
| Material Document and Classification | MIL-S-7493 MIL STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 1.8990 INCHES MINIMUM AND 1.9000 INCHES MAXIMUM IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 1.997 INCHES IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.269 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 4617 OVERALL |
| Face Nominal Width | 0.125 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 699157 | Aero Precision Industries Llc (USA) |
| Reference | Meaning |
|---|---|
| 699157 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-283-4987 is a Gear,spur, manufactured by Aero Precision Industries Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-283-4987 has 1 manufacturer part number on file: 699157 (Aero Precision Industries Llc).
1 possible match (shared part number, not a government interchangeability claim): 5330-00-530-2772. Verify interchangeability with system specifications before substitution.
Key specifications for 699157: Keyway Nominal Width: 0.068 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.437 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.719 INCHES BOTH ENDS IN; Backlash Designation: GRADE A. 19 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.
NSN 3020-00-283-4987 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.