The Heating Unit,steam-Water, cataloged under National Stock Number 4520-01-399-1337, 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 Leslie Controls, Inc. Dba Leslie Controls Inc. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4520-01-399-1337 |
| Primary Part Number | ENMF-620/190 CD 30597N (180DEG) |
| Item Name | Heating Unit,steam-Water |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Leslie Controls, Inc. Dba Leslie Controls Inc |
| Status | ACTIVE |
| General Characteristics Item Description | WITHOUT RECIRCULATION KIT; HEATER CONNECTIONS 2-1/2IN. 150.0LB FLANGE; HEAT EXCHANGER CONNECTIONS 150.0LB ANSI B16.5 FLANGE; WATER CONNECTIONS STUB WELD ENDS LBS |
| Accessory Components and Quantity | 1 EACH OF FOLLOWING: STEAM CONTROL VALVE 1-4IN. CLASS GPBCNASSY; CONSTANTEMP BLEND VALVE; CONSTANTEMP HEATER W/AUTO RESET DEVICE; CONSTANTEMP SAFETY DEVICE; FRAME BRACKET; HEAT EXCHANGER ASSEMBLY IN |
| Material | IRON AND STEEL |
| 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 |
|---|---|
| ENMF-620/190 CD 30597N (180DEG) PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| ENMF-620/190 CD SHT 30597N | 5/1 Secondary reference Leslie Controls, Inc. Dba Leslie Controls Inc |
| 30597N | D/9 Drawing number reference only Leslie Controls, Inc. Dba Leslie Controls Inc |
| ENMF-620/190 CD 29996N 160DEG/4 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| Y9011959141 | C/1 Advisory reference — outside the item-of-supply concept Leslie Controls, Inc. Dba Leslie Controls Inc |
NSN 4520-01-399-1337 is a Heating Unit,steam-Water, manufactured by Leslie Controls, Inc. Dba Leslie Controls Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-399-1337 has 1 manufacturer part number on file: ENMF-620/190 CD 30597N (180DEG) (Leslie Controls, Inc. Dba Leslie Controls Inc).
1 possible match (shared part number, not a government interchangeability claim): 4520-01-399-1410. Verify interchangeability with system specifications before substitution.
Key specifications for ENMF-620/190 CD 30597N (180DEG): General Characteristics Item Description: WITHOUT RECIRCULATION KIT; HEATER CONNECTIONS 2-1/2IN. 150.0LB FLANGE; HEAT EXCHANGER CONNECTIONS 150.0LB ANSI B16.5 FLANGE; WATER CONNECTIONS STUB WELD ENDS LBS; Accessory Components and Quantity: 1 EACH OF FOLLOWING: STEAM CONTROL VALVE 1-4IN. CLASS GPBCNASSY; CONSTANTEMP BLEND VALVE; CONSTANTEMP HEATER W/AUTO RESET DEVICE; CONSTANTEMP SAFETY DEVICE; FRAME BRACKET; HEAT EXCHANGER ASSEMBLY IN; Special Features: OUTLET WATER TEMPERATURE 180.0DEG; 40.0GPM CAP; End Item Identification: WEAPON SYSTEM CODE JA, BINIMITZ CLASS CVN 74/75. 3 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.