The Flange,pipe, cataloged under National Stock Number 4730-01-494-9685, 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 The Boeing Company Div Defense. Government technical data includes 8 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-494-9685 |
| Primary Part Number | 10M20-416 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Nominal Pipe Size for Which Designed | 2.000 INCHES IN |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Material Document and Classification | A105 CARBON STEEL ASSN STD SINGLE MATERIAL RESPONSE |
| Nominal Thread Size | 2.000 INCHES IN |
| Bolt Hole Quantity | 4 |
| Screw Thread Series Designator | NPT |
| Thread Class | 150 |
| 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 |
|---|---|
| 10M20-416 | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 2.0150THR5 | 3/9 Design control — primary reference St. Louis Pipe and Supply, Inc. |
| 74D465022 | D/9 Drawing number reference only The Boeing Company Div Defense |
NSN 4730-01-494-9685 is a Flange,pipe, manufactured by The Boeing Company Div Defense, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-494-9685 has 1 manufacturer part number on file: 10M20-416 (The Boeing Company Div Defense).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-495-1843. Verify interchangeability with system specifications before substitution.
Key specifications for 10M20-416: Nominal Pipe Size for Which Designed: 2.000 INCHES IN; Style Designator: ROUND, ONE BOLT HOLE CIRCLE; Material Document and Classification: A105 CARBON STEEL ASSN STD SINGLE MATERIAL RESPONSE; Nominal Thread Size: 2.000 INCHES IN. 8 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.