The Heater,water,liquid Fuel, cataloged under National Stock Number 4410-01-161-5158, is classified within Federal Supply Class 4410 (Industrial Boilers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Bock Water Heaters, 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4410-01-161-5158 |
| Primary Part Number | 73E |
| Item Name | Heater,water,liquid Fuel |
| FSC / FSG | 4410 / 44 — Industrial Boilers |
| Manufacturer | Bock Water Heaters, Inc. |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL; GLASS LINED; OIL FIRED; 220 GPH; 70 GAL. STORAGE; WIRED IN SERIES OF 24 VOLT OPERATION |
| 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 |
|---|---|
| 73E PRIMARY | Bock Water Heaters, Inc. (USA) |
NSN 4410-01-161-5158 is a Heater,water,liquid Fuel, manufactured by Bock Water Heaters, Inc., classified under FSC 4410, Industrial Boilers. Status: active.
NSN 4410-01-161-5158 has 1 manufacturer part number on file: 73E (Bock Water Heaters, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 6240-01-316-7702, 6115-01-587-4071. Verify interchangeability with system specifications before substitution.
Key specifications for 73E: General Characteristics Item Description: STEEL; GLASS LINED; OIL FIRED; 220 GPH; 70 GAL. STORAGE; WIRED IN SERIES OF 24 VOLT OPERATION. 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.