The Aquastat,controller, cataloged under National Stock Number 4540-00-238-9953, is classified within Federal Supply Class 4540 (Waste Disposal Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Emerson Electric Co White Rodgers Co Div. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4540-00-238-9953 |
| Primary Part Number | 11C31 |
| Item Name | Aquastat,controller |
| FSC / FSG | 4540 / 45 — Waste Disposal Equipment |
| Manufacturer | Emerson Electric Co White Rodgers Co Div |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL,TOP PAINTED GRAY; 4.187IN. LG; 3.937IN. W; 2.750IN. H; ONE THERMOCOUPLE PROTRUDING FROM BOTTOM; FURNISHED W/ONE PACKAGE OF LUBRICANT AND ONE ADAPTER IN |
| 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 |
|---|---|
| 11C31 | Emerson Electric Co White Rodgers Co Div (USA) |
| Reference | Meaning |
|---|---|
| L6081A1010 | 3/9 Design control — primary reference U.S. Government activity |
| L6081A10101 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| L6081A1036 | 5/2 Secondary reference U.S. Government activity |
NSN 4540-00-238-9953 is a Aquastat,controller, manufactured by Emerson Electric Co White Rodgers Co Div, classified under FSC 4540, Waste Disposal Equipment. Status: active.
NSN 4540-00-238-9953 has 1 manufacturer part number on file: 11C31 (Emerson Electric Co White Rodgers Co Div).
Key specifications for 11C31: General Characteristics Item Description: STEEL,TOP PAINTED GRAY; 4.187IN. LG; 3.937IN. W; 2.750IN. H; ONE THERMOCOUPLE PROTRUDING FROM BOTTOM; FURNISHED W/ONE PACKAGE OF LUBRICANT AND ONE ADAPTER IN. 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.