The Heating Unit,steam-Water, cataloged under National Stock Number 4520-01-308-5321, 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 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4520-01-308-5321 |
| Primary Part Number | ENMF-320/140DEG.F |
| 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 | VERTICAL MYG POSITION |
| Specification/standard Data | 81349-MIL-H-22881 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 1 TYPE |
| Material | COPPER AND STEEL CORROSION RESISTING |
| 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-320/140DEG.F PRIMARY | Leslie Controls, Inc. Dba Leslie Controls Inc (USA) |
| Reference | Meaning |
|---|---|
| Y901959017 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| ENMF-320/140 CD 29995N 130DEG/3 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| ENMF-320/140 CD 30596N 130DEG/1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 4520-01-308-5321 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 4520-01-308-5321 has 1 manufacturer part number on file: ENMF-320/140DEG.F (Leslie Controls, Inc. Dba Leslie Controls Inc).
1 possible match (shared part number, not a government interchangeability claim): 4420-01-480-4097. Verify interchangeability with system specifications before substitution.
Key specifications for ENMF-320/140DEG.F: General Characteristics Item Description: VERTICAL MYG POSITION; Specification/standard Data: 81349-MIL-H-22881 GOVERNMENT SPECIFICATION; Nondefinitive Spec/std Data: 1 TYPE; Special Features: W/MONEL FAILURE BLENDING VALVE;140.0DEG F SET PT TEMP RATING DEGF. 4 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.