The Plate,sprayer,oil Burner Atomize, cataloged under National Stock Number 4530-00-138-3943, is classified within Federal Supply Class 4530 (Fuel Burning Equipment Units) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Todd Combustion Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4530-00-138-3943 |
| Primary Part Number | 4173-4015F4 |
| Item Name | Plate,sprayer,oil Burner Atomize |
| FSC / FSG | 4530 / 45 — Fuel Burning Equipment Units |
| Manufacturer | Todd Combustion Inc |
| Status | ACTIVE |
| Atomizer Type | STRAIGHT-THROUGH FLOW |
| Overall Diameter | 0.875 INCHES NOMINAL IN |
| Face Type | FLAT |
| Material Document and Classification | QQ-S-763, CLASS 440C FED SPEC SINGLE MATERIAL RESPONSE |
| Size Designator | 4015 |
| Material | STEEL COMP 440C |
| Oil Supply Slot Quantity | 4 |
| 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 |
|---|---|
| 4173-4015F4 | Todd Combustion Inc (USA) |
| Reference | Meaning |
|---|---|
| 4173-4015F4 | 3/9 Design control — primary reference U.S. Government activity |
| 4015 | 5/9 Secondary reference Babcock & Wilcox Co |
| 4173-4015 | 5/9 Secondary reference Naval Ship Engineering Center Philadelphia Division Submarine Antenna Quality Assurance |
NSN 4530-00-138-3943 is a Plate,sprayer,oil Burner Atomize, manufactured by Todd Combustion Inc, classified under FSC 4530, Fuel Burning Equipment Units. Status: active.
NSN 4530-00-138-3943 has 1 manufacturer part number on file: 4173-4015F4 (Todd Combustion Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4530-00-276-9860, 4530-00-276-9863. Verify interchangeability with system specifications before substitution.
Key specifications for 4173-4015F4: Overall Height: 0.250 INCHES NOMINAL IN; Atomizer Type: STRAIGHT-THROUGH FLOW; Overall Diameter: 0.875 INCHES NOMINAL IN; Face Type: FLAT. 7 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.