The Flange,pipe, cataloged under National Stock Number 4730-01-421-8154, 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 16 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-421-8154 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Socket Diameter | 5.620 INCHES NOMINAL IN |
| Flange Diameter | 9.062 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Nominal Pipe Size for Which Designed | 5.000 INCHES IN |
| Socket Depth | 0.750 INCHES NOMINAL IN |
| Maximum Operating Temp and Media for Which Designed | 150.0 FAHRENHEIT OIL AND 150.0 FAHRENHEIT GAS AND 150.0 FAHRENHEIT WATER DEGF |
| Operating Pressure and Type | 250.0 POUNDS PER SQUARE INCH (PSI) OIL MAXIMUM REQUIRED AND 250.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED AND 250.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Flange Section Style | PLAIN FACE, SOCKET NECK |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.688 INCHES NOMINAL IN |
| Neck Height | 0.750 INCHES NOMINAL IN |
| Material Document and Classification | MIL-C-15726, 70-30 SOFT MIL SPEC SINGLE MATERIAL RESPONSE |
| Bolt Hole Quantity | 10 |
| Bolt Circle Diameter | 7.812 INCHES NOMINAL IN |
| Material | COPPER AND NICKEL ALLOY |
| Thickness | 1.062 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 |
|---|---|
| 810-4715319,SZ5 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 810-4715319 ITEM 48 SW | 5/9 Secondary reference U.S. Government activity |
| 4715319 | D/9 Drawing number reference only U.S. Government activity |
| 4715319 ITEM 48 SW | 5/2 Secondary reference U.S. Government activity |
| 810-4715319 ITEM 48 | 5/9 Secondary reference U.S. Government activity |
| 810-4715319 ITEM 48 FIG 5-C | 5/9 Secondary reference U.S. Government activity |
| 810-4715319,SZ5IN,FIG.5C,SHT#2 | 5/9 Secondary reference U.S. Government activity |
| 4715319 ITEM 48 FIG 5-C | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-421-8154 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): 4730-01-421-8156, 4730-01-421-8828, 4730-01-422-7848. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-421-8154: Socket Diameter: 5.620 INCHES NOMINAL IN; Flange Diameter: 9.062 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Nominal Pipe Size for Which Designed: 5.000 INCHES IN. 16 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.