The Gear,countershaft, cataloged under National Stock Number 3020-01-152-9250, 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 Thern Inc. Government technical data includes 1 specification, 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. 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 | 3020-01-152-9250 |
| Primary Part Number | C1102 |
| Item Name | Gear,countershaft |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Thern Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CAST IRON |
| 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 |
|---|---|
| D1091 ITEM 18 | Thern Inc (USA) |
| C1102 PRIMARY | Thern Inc (USA) |
NSN 3020-01-152-9250 is a Gear,countershaft, manufactured by Thern Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-152-9250 has 2 manufacturer part numbers on file: D1091 ITEM 18 (Thern Inc), C1102 (Thern Inc).
1 possible match (shared part number, not a government interchangeability claim): 6850-01-167-7894. Verify interchangeability with system specifications before substitution.
Key specifications for C1102: General Characteristics Item Description: CAST IRON. 1 specification is 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.