The Timer,interval, cataloged under National Stock Number 6645-01-281-0388, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Uma Inc. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6645-01-281-0388 |
| Primary Part Number | UTL264 |
| Item Name | Timer,interval |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Uma Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| UTL264 PRIMARY | Uma Inc (USA) |
| Reference | Meaning |
|---|---|
| UTL264 | 5/9 Secondary reference Daubers, Inc of Washington Dba Daubers |
| 30803-01 | 5/9 Secondary reference Star Manufacturing International Inc. Dba Lang Manufacturing Company |
NSN 6645-01-281-0388 is a Timer,interval, manufactured by Uma Inc, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-281-0388 has 1 manufacturer part number on file: UTL264 (Uma Inc).
1 possible match (shared part number, not a government interchangeability claim): 5963-01-521-2370. Verify interchangeability with system specifications before substitution.
Key specifications for UTL264: End Item Identification: OVEN CAGE 34931. 0 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.