The Meter,time Totalizing, cataloged under National Stock Number 6645-01-431-3601, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Howell Laboratories Inc Dba Howell Laboratories Inc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-01-431-3601 |
| Primary Part Number | 6555B-G501 |
| Item Name | Meter,time Totalizing |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Howell Laboratories Inc Dba Howell Laboratories Inc |
| Status | ACTIVE |
| Movement Type | ELECTRICAL |
| Reset Feature | PROVIDED |
| 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 |
|---|---|
| 6720ITEM10 | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| 6555B-G501 PRIMARY | Howell Laboratories Inc Dba Howell Laboratories Inc (USA) |
| Reference | Meaning |
|---|---|
| BE524.55 | C/1 Advisory reference — outside the item-of-supply concept I V O Industries |
NSN 6645-01-431-3601 is a Meter,time Totalizing, manufactured by Howell Laboratories Inc Dba Howell Laboratories Inc, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-431-3601 has 2 manufacturer part numbers on file: 6720ITEM10 (Howell Laboratories Inc Dba Howell Laboratories Inc), 6555B-G501 (Howell Laboratories Inc Dba Howell Laboratories Inc).
Key specifications for 6555B-G501: Movement Type: ELECTRICAL; Reset Feature: PROVIDED; End Item Identification: STRATEGIC SEALIFT CONVERSION SHIPS CLASS;ELECTRICAL PANEL ASSY.. 2 specifications are 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.