The Nozzle,oil Burner,pressure Atomi, cataloged under National Stock Number 4530-00-949-4164, is classified within Federal Supply Class 4530 (Fuel Burning Equipment Units) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Clayton Manufacturing Company. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 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 | 4530-00-949-4164 |
| Primary Part Number | 19547 |
| Item Name | Nozzle,oil Burner,pressure Atomi |
| FSC / FSG | 4530 / 45 — Fuel Burning Equipment Units |
| Manufacturer | Clayton Manufacturing Company |
| Status | ACTIVE |
| Strainer Mesh Size | 120 |
| Spray Type | SEMIHOLLOW |
| Overall Diameter | 0.625 INCHES NOMINAL IN |
| Strainer Length | 0.438 INCHES IN |
| Capacity in Gallons Per Hour | 3.250 |
| Spray Angle in Deg | 70.0 |
| Adapter | NOT INCLUDED |
| Connection Thread Location | EXTERNAL |
| Strainer Provision | INCLUDED |
| Thread Size | 0.563-24 |
| Screw Thread Series Designator | UNEF |
| Material | STEEL LOCATION NOT OTHERWISE SPECIFIED |
| Material | NICKEL ALLOY STRAINER |
| Filter | NOT INCLUDED |
| 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 |
|---|---|
| 19547 PRIMARY | Clayton Manufacturing Company (USA) |
| PLP3-25-70DEG PRIMARY | Monarch Mfg Works Inc (USA) |
NSN 4530-00-949-4164 is a Nozzle,oil Burner,pressure Atomi, manufactured by Clayton Manufacturing Company, classified under FSC 4530, Fuel Burning Equipment Units. Status: active.
NSN 4530-00-949-4164 has 2 manufacturer part numbers on file: 19547 (Clayton Manufacturing Company), PLP3-25-70DEG (Monarch Mfg Works Inc).
1 possible match (shared part number, not a government interchangeability claim): 1660-01-075-8688. Verify interchangeability with system specifications before substitution.
Key specifications for 19547: Strainer Mesh Size: 120; Spray Type: SEMIHOLLOW; Overall Diameter: 0.625 INCHES NOMINAL IN; Strainer Length: 0.438 INCHES IN. 14 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.