The Valve Assembly,air, cataloged under National Stock Number 4530-01-310-3198, 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 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 4530-01-310-3198 |
| Primary Part Number | D-3-269 |
| Item Name | Valve Assembly,air |
| FSC / FSG | 4530 / 45 — Fuel Burning Equipment Units |
| Manufacturer | Todd Combustion Inc |
| Status | ACTIVE |
| General Characteristics Item Description | COPPER AND STEEL |
| 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 |
|---|---|
| D-3-269 PRIMARY | Todd Combustion Inc (USA) |
| 5557344 13,16-21,29,42,47,52 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5557344 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4530-01-310-3198 is a Valve Assembly,air, manufactured by Todd Combustion Inc, classified under FSC 4530, Fuel Burning Equipment Units. Status: active.
NSN 4530-01-310-3198 has 2 manufacturer part numbers on file: D-3-269 (Todd Combustion Inc), 5557344 13,16-21,29,42,47,52 (Naval Sea Systems Command).
3 possible matches (shared part number, not a government interchangeability claim): 4530-01-310-3199, 4530-01-314-1100, 4530-01-314-1101. Verify interchangeability with system specifications before substitution.
Key specifications for D-3-269: General Characteristics Item Description: COPPER AND STEEL; End Item Identification: NAVSEA TRIPLEX BURNER PRESSURE FIRED BOILERS. 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.