The Probe Assembly, cataloged under National Stock Number 4410-00-075-0349, is classified within Federal Supply Class 4410 (Industrial Boilers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is L & L Boiler Maintenance Inc. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4410-00-075-0349 |
| Primary Part Number | 657001024 |
| Item Name | Probe Assembly |
| FSC / FSG | 4410 / 44 — Industrial Boilers |
| Manufacturer | L & L Boiler Maintenance 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 |
|---|---|
| 999301010 | L & L Boiler Maintenance Inc (USA) |
| 657001024 PRIMARY | L & L Boiler Maintenance Inc (USA) |
| 999301009 | L & L Boiler Maintenance Inc (USA) |
| Reference | Meaning |
|---|---|
| C3266617PC1T12 | 5/2 Secondary reference U.S. Government activity |
| 999301009 | 5/9 Secondary reference D & J Parts Inc |
| 999301010 | 5/9 Secondary reference D & J Parts Inc |
| 657001024 | 3/9 Design control — primary reference D & J Parts Inc |
| D3266606PC1T12 | 5/2 Secondary reference U.S. Government activity |
NSN 4410-00-075-0349 is a Probe Assembly, manufactured by L & L Boiler Maintenance Inc, classified under FSC 4410, Industrial Boilers. Status: active.
NSN 4410-00-075-0349 has 3 manufacturer part numbers on file: 999301010 (L & L Boiler Maintenance Inc), 657001024 (L & L Boiler Maintenance Inc), 999301009 (L & L Boiler Maintenance Inc).
Key specifications for 657001024: End Item Identification: BOILER STM AUX. 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.