The Control,underwater Log, cataloged under National Stock Number 6605-01-161-3682, is classified within Federal Supply Class 6605 (Navigational Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Lockheed Martin Corporation Div Rms. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6605-01-161-3682 |
| Primary Part Number | D3221-2 |
| Item Name | Control,underwater Log |
| FSC / FSG | 6605 / 66 — Navigational Instruments |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Maximum Overall Width | 5.500 INCHES IN |
| Inclosure Type | ENCASED |
| Maximum Overall Length | 2.750 INCHES IN |
| Maximum Overall Height | 3.500 INCHES IN |
| Mounting Method | PANEL |
| Power Source | EXTERNAL |
| Terminal Location | BOTTOM |
| Features Provided | MANUAL CONTROL AND POWER LIGHT AND REMOTE CONTROL AND SELECTOR SWITCH |
| Terminal Type and Quantity | 2 CONNECTOR, RECEPTACLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| D3221-2 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| D3221-2 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
NSN 6605-01-161-3682 is a Control,underwater Log, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 6605, Navigational Instruments. Status: active.
NSN 6605-01-161-3682 has 1 manufacturer part number on file: D3221-2 (Lockheed Martin Corporation Div Rms).
Key specifications for D3221-2: Maximum Overall Width: 5.500 INCHES IN; Inclosure Type: ENCASED; Maximum Overall Length: 2.750 INCHES IN; Maximum Overall Height: 3.500 INCHES IN. 9 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.