The Gear Assembly,speed Decreaser, cataloged under National Stock Number 3010-01-171-3380, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is B.w. Elliott Manufacturing Co., Llc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Gear Assembly,speed Decreaser |
| FSC / FSG | 3010 — Torque Converters and Speed Changers (FSG 30) |
| Manufacturers | B.w. Elliott Manufacturing Co., Llc (CAGE 72166) |
| Parameter | Value |
|---|---|
| NSN | 3010-01-171-3380 |
| Primary Part Number | S18979-501 |
| Item Name | Gear Assembly,speed Decreaser |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | B.w. Elliott Manufacturing Co., Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| S18979-501 PRIMARY | B.w. Elliott Manufacturing Co., Llc (USA) |
| Reference | Meaning |
|---|---|
| 18979 | D/9 Drawing number reference only Elliott B W Mfg Co Llc Flex Shaft and Valve Control Product Lines |
| 18979-501 | 5/9 Secondary reference Elliott B W Mfg Co Llc Flex Shaft and Valve Control Product Lines |
NSN 3010-01-171-3380 is a Gear Assembly,speed Decreaser, manufactured by B.w. Elliott Manufacturing Co., Llc, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-171-3380 has 1 manufacturer part number on file: S18979-501 (B.w. Elliott Manufacturing Co., Llc).
1 possible match (shared part number, not a government interchangeability claim): 6545-01-588-1419. Verify interchangeability with system specifications before substitution.
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.