The Ring,adjusting, cataloged under National Stock Number 3010-01-101-9212, 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. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Ring,adjusting |
| FSC / FSG | 3010 — Torque Converters and Speed Changers (FSG 30) |
| Manufacturers | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (CAGE 61208); Marine & Industrial Transmissions Ltd (CAGE U2621) |
| Parameter | Value |
|---|---|
| NSN | 3010-01-101-9212 |
| Primary Part Number | A4241 |
| Item Name | Ring,adjusting |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
NSN 3010-01-101-9212 is a Ring,adjusting, manufactured by Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-101-9212 has 2 manufacturer part numbers on file: A4241 (Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic), A4241 (Marine & Industrial Transmissions Ltd).
1 possible match (shared part number, not a government interchangeability claim): 5365-01-201-5215. 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.