The Coupling Pump Motor, cataloged under National Stock Number 3010-01-269-9585, is classified within Federal Supply Class 3010 (Torque Converters and Speed Changers) of the Mechanical Power Transmission Equipment group. The manufacturer of record is W.w. Grainger, Inc. Div Government Sales Division. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 3010-01-269-9585 |
| Primary Part Number | 4RD81 |
| Item Name | Coupling Pump Motor |
| FSC / FSG | 3010 / 30 — Torque Converters and Speed Changers |
| Manufacturer | W.w. Grainger, Inc. Div Government Sales Division |
| Status | ACTIVE |
| General Characteristics Item Description | 1B822,PUMP |
| 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 |
|---|---|
| 4RD81 PRIMARY | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| Reference | Meaning |
|---|---|
| 1R462 | 3/9 Design control — primary reference Grainger W W Inc |
| 1R271 | 5/9 Secondary reference Grainger W W Inc |
| 1R462 | 5/9 Secondary reference W.w. Grainger, Inc. Div Government Sales Division |
NSN 3010-01-269-9585 is a Coupling Pump Motor, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 3010, Torque Converters and Speed Changers. Status: active.
NSN 3010-01-269-9585 has 1 manufacturer part number on file: 4RD81 (W.w. Grainger, Inc. Div Government Sales Division).
1 possible match (shared part number, not a government interchangeability claim): 3010-01-271-6170. Verify interchangeability with system specifications before substitution.
Key specifications for 4RD81: General Characteristics Item Description: 1B822,PUMP; End Item Identification: 1/12,1/6 HP;BELL AND GOSSETT,ARMSTRONG AND TEEL HOT WATER CIRCULATOR PUMP. 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.