The Rodmeter,underwater Log, cataloged under National Stock Number 6605-01-033-5794, 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. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Rodmeter,underwater Log |
| FSC / FSG | 6605 — Navigational Instruments (FSG 66) |
| Manufacturers | Lockheed Martin Corporation Div Rms (CAGE 03538) |
| Parameter | Value |
|---|---|
| NSN | 6605-01-033-5794 |
| Primary Part Number | D4221-3 |
| Item Name | Rodmeter,underwater Log |
| FSC / FSG | 6605 / 66 — Navigational Instruments |
| Manufacturer | Lockheed Martin Corporation Div Rms |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 4221-3 | Lockheed Martin Corporation Div Rms (USA) |
| D4221-3 PRIMARY | Lockheed Martin Corporation Div Rms (USA) |
| Reference | Meaning |
|---|---|
| 4221-3 | 5/9 Secondary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
| D4221-3 | 3/9 Design control — primary reference Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems |
NSN 6605-01-033-5794 is a Rodmeter,underwater Log, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 6605, Navigational Instruments. Status: active.
NSN 6605-01-033-5794 has 2 manufacturer part numbers on file: 4221-3 (Lockheed Martin Corporation Div Rms), D4221-3 (Lockheed Martin Corporation Div Rms).
2 possible matches (shared part number, not a government interchangeability claim): 5330-01-075-5983, 5950-01-198-3917. Verify interchangeability with system specifications before substitution.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 6605-01-033-5794 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.