The Module,time Standard, cataloged under National Stock Number 6645-01-321-7029, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6645-01-321-7029 |
| Item Name | Module,time Standard |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Status | ACTIVE |
| Nuclear Hardness Critical Feature | HARDENED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | H |
| Reference | Meaning |
|---|---|
| TD-1428/U | 5/9 Secondary reference U.S. Government activity |
| 822-0160-001 | 5/2 Secondary reference U.S. Government activity |
| 622-7215-002 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| TD-1428A/U | 5/2 Secondary reference U.S. Government activity |
| 822-0160-001 | 3/9 Design control — primary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| 622-7215-003 | 5/9 Secondary reference U.S. Government activity |
NSN 6645-01-321-7029 is a Module,time Standard, classified under FSC 6645, Time Measuring Instruments. Status: active.
Key specifications for 6645-01-321-7029: Special Features: 5 MHZ FREQUENCY SIGNAL, 1 PPS TIMESIGNAL; 60 BLOCKS OF 128 BYTE DATA BLOOF STORAGE; BATTERY RECHARGABLE 5 OVDC; DIMENSIONS 4.25 MHz; Nuclear Hardness Critical Feature: HARDENED. 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.
NSN 6645-01-321-7029 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.