The Heating Element,electrical,immer, cataloged under National Stock Number 4520-01-579-0870, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Watlow Electric Manufacturing Company Dba Watlow Industries Div Watlow Hannibal. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Heating Element,electrical,immer |
| FSC / FSG | 4520 — Space and Water Heating Equipment (FSG 45) |
| Manufacturers | Hydraulics International, Inc. Dba Hydraulics International Inc (CAGE 56529); Watlow Electric Manufacturing Company Dba Watlow Industries Div Watlow Hannibal (CAGE 9F951) |
| Parameter | Value |
|---|---|
| NSN | 4520-01-579-0870 |
| Primary Part Number | BLNF31J30 |
| Item Name | Heating Element,electrical,immer |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Watlow Electric Manufacturing Company Dba Watlow Industries Div Watlow Hannibal |
| 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 |
|---|---|
| 060874-204 ITEM 53 | Hydraulics International, Inc. Dba Hydraulics International Inc (USA) |
| BLNF31J30 | Hydraulics International, Inc. Dba Hydraulics International Inc (USA) |
| BLNF31J30 PRIMARY | Watlow Electric Manufacturing Company Dba Watlow Industries Div Watlow Hannibal (USA) |
NSN 4520-01-579-0870 is a Heating Element,electrical,immer, manufactured by Watlow Electric Manufacturing Company Dba Watlow Industries Div Watlow Hannibal, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-579-0870 has 3 manufacturer part numbers on file: 060874-204 ITEM 53 (Hydraulics International, Inc. Dba Hydraulics International Inc), BLNF31J30 (Hydraulics International, Inc. Dba Hydraulics International Inc), BLNF31J30 (Watlow Electric Manufacturing Company Dba Watlow Industries Div Watlow Hannibal).
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.