The Meter,time Elapsed, cataloged under National Stock Number 6645-01-250-2702, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Signal Design Inc Sub of Dynamic Instruments Inc. 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. 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 | 6645-01-250-2702 |
| Primary Part Number | 21-00103 |
| Item Name | Meter,time Elapsed |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Signal Design Inc Sub of Dynamic Instruments Inc |
| Status | ACTIVE |
| General Characteristics Item Description | 1.890 IN. LG IN |
| 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 |
|---|---|
| 21-00103 PRIMARY | Signal Design Inc Sub of Dynamic Instruments Inc (USA) |
NSN 6645-01-250-2702 is a Meter,time Elapsed, manufactured by Signal Design Inc Sub of Dynamic Instruments Inc, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-250-2702 has 1 manufacturer part number on file: 21-00103 (Signal Design Inc Sub of Dynamic Instruments Inc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-420-4992. Verify interchangeability with system specifications before substitution.
Key specifications for 21-00103: General Characteristics Item Description: 1.890 IN. LG IN; End Item Identification: ELECTRONIC WARFARE EQUIPMENT. 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.