The Gear,antibacklash,spur, cataloged under National Stock Number 3020-00-070-4972, 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 Astronautics Corporation of America. Government technical data includes 6 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 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 | 3020-00-070-4972 |
| Primary Part Number | 100849 |
| Item Name | Gear,antibacklash,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Astronautics Corporation of America |
| Status | ACTIVE |
| Teeth Quantity | 23 |
| Bore Style | PLAIN BOTH ENDS |
| Style Designator | HUBLESS |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Attachment Method | SLOT |
| 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 |
|---|---|
| 100849 PRIMARY | Astronautics Corporation of America (USA) |
NSN 3020-00-070-4972 is a Gear,antibacklash,spur, manufactured by Astronautics Corporation of America, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-070-4972 has 1 manufacturer part number on file: 100849 (Astronautics Corporation of America).
1 possible match (shared part number, not a government interchangeability claim): 5998-00-943-7389. Verify interchangeability with system specifications before substitution.
Key specifications for 100849: Teeth Quantity: 23; Bore Style: PLAIN BOTH ENDS; Style Designator: HUBLESS; Tooth Form: STANDARD. 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.
NSN 3020-00-070-4972 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.