The Fitting Assembly, cataloged under National Stock Number 4730-01-043-9740, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc. 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-043-9740 |
| Primary Part Number | 16H1603-3 |
| Item Name | Fitting Assembly |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY,QQ-A-225/8-T651,1.850 IN.MIN,1.910 IN.MAX O/A LG,0.120 IN.MIN,0.140 IN.MAX FLANGE THK,1.640 IN.MIN,1.660 IN.MAX FIRST END TO FLANGE LG,0.100 IN. SECOND END TO FLANGE LG,1.890 IN.MIN,1.950 IN.MAX FLANGE DIA,0.371 IN.MIN,0.379 IN.MAX FIRST END DIA,0.740 IN.MIN,0.760 IN.MAX SECOND END DIA,0.190 IN.MIN,0.210 IN.MAX HOLE DIA,125.0 UIN FIN IN |
| 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 |
|---|---|
| 16H1603-3 | Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc (USA) |
| 16H1603-3 | Tusas - Turk Havacilik Ve Uzay Sanayii Anonim Sirketi (TUR) |
| Reference | Meaning |
|---|---|
| 16H1603-3A | 5/2 Secondary reference U.S. Government activity |
| 16H1603-3A | 5/2 Secondary reference U.S. Government activity |
| 4730PL0742846 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 16H1603-3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-043-9740 is a Fitting Assembly, manufactured by Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-043-9740 has 2 manufacturer part numbers on file: 16H1603-3 (Aerospace & Commercial Technologies, Llc Dba Aerospace & Commercial Technologies Llc), 16H1603-3 (Tusas - Turk Havacilik Ve Uzay Sanayii Anonim Sirketi).
Key specifications for 16H1603-3: General Characteristics Item Description: ALUMINUM ALLOY,QQ-A-225/8-T651,1.850 IN.MIN,1.910 IN.MAX O/A LG,0.120 IN.MIN,0.140 IN.MAX FLANGE THK,1.640 IN.MIN,1.660 IN.MAX FIRST END TO FLANGE LG,0.100 IN. SECOND END TO FLANGE LG,1.890 IN.MIN,1.950 IN.MAX FLANGE DIA,0.371 IN.MIN,0.379 IN.MAX FIRST END DIA,0.740 IN.MIN,0.760 IN.MAX SECOND END DIA,0.190 IN.MIN,0.210 IN.MAX HOLE DIA,125.0 UIN FIN IN. 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.