The Meter,time Totalizing, cataloged under National Stock Number 6645-01-231-2432, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Lockheed Martin Librascope Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Meter,time Totalizing |
| FSC / FSG | 6645 — Time Measuring Instruments (FSG 66) |
| Manufacturers | Lockheed Martin Corporation Div Rms - Mitchel Field (CAGE 56232); Lockheed Martin Librascope Corporation (CAGE 36090) |
| Parameter | Value |
|---|---|
| NSN | 6645-01-231-2432 |
| Primary Part Number | L512300006 |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Lockheed Martin Librascope Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 1206883 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| L512300006 PRIMARY | Lockheed Martin Librascope Corporation (USA) |
| Reference | Meaning |
|---|---|
| M7793/1-007 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 6645-01-231-2432 is a Meter,time Totalizing, manufactured by Lockheed Martin Librascope Corporation, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-231-2432 has 2 manufacturer part numbers on file: 1206883 (Lockheed Martin Corporation Div Rms - Mitchel Field), L512300006 (Lockheed Martin Librascope Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6645-01-476-9712. 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.