The Bonnet,fluid Heater Industrial, cataloged under National Stock Number 4420-01-309-4177, is classified within Federal Supply Class 4420 (Heat Exchangers and Steam Condensers) of the Furnace, Steam, Drying, Nuclear Reactors group. The manufacturer of record is Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4420-01-309-4177 |
| Primary Part Number | 1101674000 |
| Item Name | Bonnet,fluid Heater Industrial |
| FSC / FSG | 4420 / 44 — Heat Exchangers and Steam Condensers |
| Manufacturer | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc |
| Status | ACTIVE |
| Length | 6.000 INCHES NOMINAL6.000 INCHES NOMINAL IN |
| Style Designator | TWO PASS CHANNEL |
| Material Document and Classification | MIL-H-16313 MIL SPEC ALL MATERIAL RESPONSES OVERALL |
| Material Thickness | 0.270 INCHES NOMINAL0.270 INCHES NOMINAL IN |
| Flow Type | SINGLE PASSSINGLE PASS |
| Height | 11.125 INCHES NOMINAL11.125 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 1101674000 PRIMARY | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (USA) |
| 1101624000 ITEM 3 | Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (USA) |
| Reference | Meaning |
|---|---|
| 1101624000 | D/9 Drawing number reference only Howden Fluid Systems |
NSN 4420-01-309-4177 is a Bonnet,fluid Heater Industrial, manufactured by Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc, classified under FSC 4420, Heat Exchangers and Steam Condensers. Status: active.
NSN 4420-01-309-4177 has 2 manufacturer part numbers on file: 1101674000 (Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc), 1101624000 ITEM 3 (Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc).
Key specifications for 1101674000: Length: 6.000 INCHES NOMINAL6.000 INCHES NOMINAL IN; Style Designator: TWO PASS CHANNEL; Material Document and Classification: MIL-H-16313 MIL SPEC ALL MATERIAL RESPONSES OVERALL; Material Thickness: 0.270 INCHES NOMINAL0.270 INCHES NOMINAL IN. 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.