The Flange,pipe, cataloged under National Stock Number 4730-01-184-1026, 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 14 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-184-1026 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Diameter | 8.688 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Maximum Operating Temp and Media for Which Designed | 150.0 FAHRENHEIT WATER, SALT DEGF |
| Tube Outside Diameter for Which Designed | 4.000 INCHES NOMINAL IN |
| Operating Pressure and Type | 700.0 POUNDS PER SQUARE INCH (PSI) SALT WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Flange Section Style | PLAIN FACE, WELDING NECK |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.688 INCHES NOMINAL IN |
| Neck Height | 2.125 INCHES NOMINAL IN |
| Material Document and Classification | MIL-C-15726,COMP 70-30 MIL SPEC SINGLE MATERIAL RESPONSE |
| Bolt Hole Quantity | 10 |
| Bolt Circle Diameter | 7.188 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Thickness | 1.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| 508-46855766 ITEM F92 | 5/2 Secondary reference U.S. Government activity |
| 810-138561 TYPE P 4IN | 5/2 Secondary reference U.S. Government activity |
| 87651-1471 ITEM F92 | 5/2 Secondary reference U.S. Government activity |
| 508-4685766 ITE | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 13-08-0532 | 3/2 Design control — primary reference U.S. Government activity |
| 508-4685766 | D/9 Drawing number reference only U.S. Government activity |
| 810-1385861 TYP | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 500-4677429 ITE | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4730-01-184-1026 is a Flange,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
5 possible matches (shared part number, not a government interchangeability claim): 4730-01-275-9589, 4730-01-277-5438, 4730-01-303-2497. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-184-1026: Flange Diameter: 8.688 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Maximum Operating Temp and Media for Which Designed: 150.0 FAHRENHEIT WATER, SALT DEGF; Tube Outside Diameter for Which Designed: 4.000 INCHES NOMINAL IN. 14 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.