The Trigger,oil Burner, cataloged under National Stock Number 4530-01-154-6423, is classified within Federal Supply Class 4530 (Fuel Burning Equipment Units) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Babcock & Wilcox Co. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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: Cancelled.
| Item Name | Trigger,oil Burner |
| FSC / FSG | 4530 — Fuel Burning Equipment Units (FSG 45) |
| Manufacturers | Babcock & Wilcox Co (CAGE 05073) |
| Parameter | Value |
|---|---|
| NSN | 4530-01-154-6423 |
| Primary Part Number | 1003921 |
| Item Name | Trigger,oil Burner |
| FSC / FSG | 4530 / 45 — Fuel Burning Equipment Units |
| Manufacturer | Babcock & Wilcox Co |
| Status | CANCELLED |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1003921 PRIMARY | Babcock & Wilcox Co (USA) |
| MX-261180 PIECE-37 PRIMARY | Babcock & Wilcox Co (USA) |
| Reference | Meaning |
|---|---|
| CVB41-S5504-18020-3 | D/9 Drawing number reference only U.S. Government activity |
| 51362B | C/1 Advisory reference — outside the item-of-supply concept The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| MX-261180-3 | D/9 Drawing number reference only The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| MX261193-3PC37 | C/1 Advisory reference — outside the item-of-supply concept The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| 5488E PIECE 37 | 5/9 Secondary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| 5488E | 5/9 Secondary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| 1003921 | 5/9 Secondary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| 51362B B58909 | D/9 Drawing number reference only The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
| 5488E PIECE 37 | C/1 Advisory reference — outside the item-of-supply concept Babcock & Wilcox Co |
| 5488E | C/1 Advisory reference — outside the item-of-supply concept Babcock & Wilcox Co |
| MX-261180 PIECE-37 | 3/9 Design control — primary reference The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company |
NSN 4530-01-154-6423 is a Trigger,oil Burner, manufactured by Babcock & Wilcox Co, classified under FSC 4530, Fuel Burning Equipment Units. Status: cancelled.
NSN 4530-01-154-6423 has 2 manufacturer part numbers on file: 1003921 (Babcock & Wilcox Co), MX-261180 PIECE-37 (Babcock & Wilcox Co).
1 possible match (shared part number, not a government interchangeability claim): 4530-01-158-8582. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4530-01-154-6423 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.