The Flange,pipe, cataloged under National Stock Number 4730-00-936-8732, 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 Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-936-8732 |
| Primary Part Number | 3130B |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| Status | ACTIVE |
| Face Seating Surface Condition | MACHINED |
| Nominal Pipe Size for Which Designed | 1.661 INCHES IN |
| Flange Section Style | RECESSED FACE, RAISED NECK |
| Style Designator | SQUARE, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.563 INCHES NOMINAL IN |
| Neck Height | 0.250 INCHES NOMINAL IN |
| Material Document and Classification | QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE |
| Recess Depth | 0.625 INCHES NOMINAL IN |
| Recess Diameter | 1.500 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 1.875 INCHES NOMINAL IN |
| Flange Width | 3.875 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Thickness | 0.500 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 |
| Part Number | Manufacturer |
|---|---|
| 3130B PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| 156416PC212 | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| 200110ZPC366 | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| 156416PC212 | 5/9 Secondary reference U.S. Government activity |
| 200110ZPC366 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| 156416PC212 | 5/9 Secondary reference U.S. Government activity |
| 3130B | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 156416PC212 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 3130B | 3/9 Design control — primary reference U.S. Government activity |
| 156416PC212 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| 3130B | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| 200110ZPC366 | 5/9 Secondary reference U.S. Government activity |
| 156416 | D/9 Drawing number reference only U.S. Government activity |
| 200110ZPC366 | 5/9 Secondary reference U.S. Government activity |
| 200110ZPC366 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
NSN 4730-00-936-8732 is a Flange,pipe, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-936-8732 has 3 manufacturer part numbers on file: 3130B (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), 156416PC212 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), 200110ZPC366 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-602-0715. Verify interchangeability with system specifications before substitution.
Key specifications for 3130B: Face Seating Surface Condition: MACHINED; Nominal Pipe Size for Which Designed: 1.661 INCHES IN; Flange Section Style: RECESSED FACE, RAISED NECK; Style Designator: SQUARE, ONE BOLT HOLE CIRCLE. 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.