The Flange,pipe, cataloged under National Stock Number 4730-01-326-9123, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-326-9123 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Material Document and Classification | MIL-C-15725,COMP 70-30S MIL SPEC SINGLE MATERIAL RESPONSE |
| Unthreaded Reducer Hole Diameter | 0.750 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 |
| Reference | Meaning |
|---|---|
| 4687676-79G | 3/2 Design control — primary reference U.S. Government activity |
| 4685766 | D/9 Drawing number reference only U.S. Government activity |
| 2621-228-02 PIECE 79G | 5/9 Secondary reference Triumph Manufacturing Company, Inc. |
| 2621-228-02 PIECE 79G | 5/9 Secondary reference U.S. Government activity |
| 4687676-079GA | 5/2 Secondary reference U.S. Government activity |
| 2621-228-02PIEC | 5/9 Secondary reference U.S. Government activity |
| 508-4685766 ITEM F36 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-326-9123 is a Flange,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-327-0087. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-326-9123: Material Document and Classification: MIL-C-15725,COMP 70-30S MIL SPEC SINGLE MATERIAL RESPONSE; Unthreaded Reducer Hole Diameter: 0.750 INCHES NOMINAL IN; Material: COPPER ALLOY. 3 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.