The Reducer Body,tube, cataloged under National Stock Number 4730-01-348-6546, 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 Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply. Government technical data includes 12 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-348-6546 |
| Primary Part Number | AA1860-4-2D |
| Item Name | Reducer Body,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply |
| Status | ACTIVE |
| Second End Seat Angle in Deg | 37.0 |
| First End Seat Angle in Deg | 37.0 |
| Tube Outside Diameter for Which Designed | 0.125 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Criticality Code Justification | FEAT |
| Style Designator | REDUCER BODY |
| Thread Direction | RIGHT-HAND |
| Thread Size | 7/16-24 |
| Screw Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Flange Width | 0.141 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Material | ALUMINUM ALLOY 2024 |
| Flange Outside Diameter | 0.302 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 7M1042-4-2V | The Boeing Company Div Defense (USA) |
| AA1860-4-2D PRIMARY | Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply (USA) |
| Reference | Meaning |
|---|---|
| 7M1042 | D/9 Drawing number reference only The Boeing Company Div Defense |
| 10109061 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 4730-01-348-6546 is a Reducer Body,tube, manufactured by Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-348-6546 has 2 manufacturer part numbers on file: 7M1042-4-2V (The Boeing Company Div Defense), AA1860-4-2D (Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply).
Key specifications for AA1860-4-2D: Second End Seat Angle in Deg: 37.0; First End Seat Angle in Deg: 37.0; Tube Outside Diameter for Which Designed: 0.125 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Criticality Code Justification: FEAT. 12 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.
NSN 4730-01-348-6546 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.