The Flange,pipe, cataloged under National Stock Number 4730-01-111-2926, 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 Emerson Electric Co Alco Controls Div. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-111-2926 |
| Primary Part Number | C501-5MM |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Emerson Electric Co Alco Controls Div |
| Status | ACTIVE |
| Flange End Radius | 0.344 INCHES NOMINAL IN |
| Style Designator | OVAL, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.421 INCHES NOMINAL IN |
| Material Document and Classification | ASTM B124 ALY 2 ASSN STD SINGLE MATERIAL RESPONSE |
| Recess Depth | 0.283 INCHES NOMINAL IN |
| Recess Diameter | 1.004 INCHES NOMINAL IN |
| Bolt Hole Quantity | 2 |
| Raised Face Diameter | 1.240 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| 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 |
|---|---|
| C501-5MM | Weiss Technik Gmbh (DEU) |
| C501-5MM | Emerson Electric Gmbh & Co Alco Controls Division (DEU) |
| C501-5MM PRIMARY | Emerson Electric Co Alco Controls Div (USA) |
| 803233 | Emerson Electric Gmbh & Co Alco Controls Division (DEU) |
| Reference | Meaning |
|---|---|
| C501-5MM | 5/9 Secondary reference Reiss Kaelte-Klima Gmbh & Co.kg |
NSN 4730-01-111-2926 is a Flange,pipe, manufactured by Emerson Electric Co Alco Controls Div, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-111-2926 has 4 manufacturer part numbers on file: C501-5MM (Weiss Technik Gmbh), C501-5MM (Emerson Electric Gmbh & Co Alco Controls Division), C501-5MM (Emerson Electric Co Alco Controls Div), 803233 (Emerson Electric Gmbh & Co Alco Controls Division).
1 possible match (shared part number, not a government interchangeability claim): 5980-01-295-6396. Verify interchangeability with system specifications before substitution.
Key specifications for C501-5MM: Flange End Radius: 0.344 INCHES NOMINAL IN; Style Designator: OVAL, ONE BOLT HOLE CIRCLE; Bolt Hole Diameter: 0.421 INCHES NOMINAL IN; Material Document and Classification: ASTM B124 ALY 2 ASSN STD SINGLE MATERIAL RESPONSE. 9 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.