The Control,flame Safeguard, cataloged under National Stock Number 4540-01-021-4743, is classified within Federal Supply Class 4540 (Waste Disposal Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Honeywell Inc Process Control Div. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4540-01-021-4743 |
| Primary Part Number | 105172A |
| Item Name | Control,flame Safeguard |
| FSC / FSG | 4540 / 45 — Waste Disposal Equipment |
| Manufacturer | Honeywell Inc Process Control Div |
| Status | ACTIVE |
| General Characteristics Item Description | THD EXTERNAL ONE END 0.750-14 NPT RH THD LG 0.500 IN.;THD INTERNAL OTHER END 0.750-14 NPT RH;INSIDE THD INTERNAL END IS GLASS 0.872 IN. DIA BY 0.122 IN. THK AND 2 GASKETS HELD IN PLACE BY A THD INSERT;OD OF FEMALE END IS 1.250 IN. IN |
| Material | 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 |
|---|---|
| 105172A PRIMARY | Honeywell Inc Process Control Div (USA) |
| Reference | Meaning |
|---|---|
| Z20118D186 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4540-01-021-4743 is a Control,flame Safeguard, manufactured by Honeywell Inc Process Control Div, classified under FSC 4540, Waste Disposal Equipment. Status: active.
NSN 4540-01-021-4743 has 1 manufacturer part number on file: 105172A (Honeywell Inc Process Control Div).
Key specifications for 105172A: General Characteristics Item Description: THD EXTERNAL ONE END 0.750-14 NPT RH THD LG 0.500 IN.;THD INTERNAL OTHER END 0.750-14 NPT RH;INSIDE THD INTERNAL END IS GLASS 0.872 IN. DIA BY 0.122 IN. THK AND 2 GASKETS HELD IN PLACE BY A THD INSERT;OD OF FEMALE END IS 1.250 IN. IN; Overall Length: 1.721 INCHES NOMINAL IN; End Item Identification: HONEYWELL C7015A FLAMEGUARD; Material: STEEL. 2 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.