The Timer,interval, cataloged under National Stock Number 6645-01-415-3336, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Ssac 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Timer,interval |
| FSC / FSG | 6645 — Time Measuring Instruments (FSG 66) |
| Manufacturers | Ssac Inc (CAGE 53010) |
| Parameter | Value |
|---|---|
| NSN | 6645-01-415-3336 |
| Primary Part Number | TDMH120AL |
| Item Name | Timer,interval |
| FSC / FSG | 6645 / 66 — Time Measuring Instruments |
| Manufacturer | Ssac 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 |
|---|---|
| TDMH120AL | Ssac Inc (USA) |
| Reference | Meaning |
|---|---|
| E332-5081-12 | 3/2 Design control — primary reference U.S. Government activity |
| E332-5081 | D/9 Drawing number reference only U.S. Government activity |
NSN 6645-01-415-3336 is a Timer,interval, manufactured by Ssac Inc, classified under FSC 6645, Time Measuring Instruments. Status: active.
NSN 6645-01-415-3336 has 1 manufacturer part number on file: TDMH120AL (Ssac Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4520-01-416-0446, 6110-01-416-5602. 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.