The Gear Assembly,speed Decreaser, cataloged under National Stock Number 3010-01-591-1037, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic. Government technical data includes 2 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3010-01-591-1037 |
| Primary Part Number | MG-516 |
| Item Name | Gear Assembly,speed Decreaser |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| Features Provided | SHIPBOARD USAGE DESIGN |
| Total Ratio | 4.52 TO 1 |
| 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 |
|---|---|
| MG-516 PRIMARY | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA) |
NSN 3010-01-591-1037 is a Gear Assembly,speed Decreaser, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-591-1037 has 1 manufacturer part number on file: MG-516 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic).
Key specifications for MG-516: Features Provided: SHIPBOARD USAGE DESIGN; Total Ratio: 4.52 TO 1; Special Features: OIL CAPACITY 6.50 GALLONS PLUS VOLUME IN HOSES AND HEAT EXCHANGER; OIL PUMPCAPICITY 14.1 GPM @ 1800 RPM @ 220 PSI 12.5 INCHES HG MAX VACUUM IN GEAR CHAMBER; PRESSURE RANGE 125 TO 240 PSI AT SPEED RANGE OF 600 TO 2500 RPM; MAXIMUM INPUT SPEED 2500 RPM: DRY WEIGHT 1580 POUNDS LBS; Part Name Assigned by Controlling Agency: MARINE TRANSMISSION, MODEL MG-516. 2 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.