The Adapter,straight,flange to Pipe, cataloged under National Stock Number 4730-01-151-5998, 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 Circor Pumps North America Llc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-151-5998 |
| Primary Part Number | S-327AE |
| Item Name | Adapter,straight,flange to Pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Circor Pumps North America Llc |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES SECOND END |
| Flange Face Design | RAISED STRAIGHT SECOND END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Bolt Circle Nominal Diameter | 3.500 INCHES SECOND END IN |
| Nominal Overall Length | 4.250 INCHES IN |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Bolt Hole Nominal Diameter | 0.750 INCHES SECOND END IN |
| Nominal Thread Size | 1.250 INCHES FIRST END IN |
| Nominal Outside Diameter | 4.875 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 SECOND END |
| Material | STEEL OVERALL |
| Thread Series Designator | NPT FIRST END |
| Raised Face Nominal Diameter | 2.757 INCHES SECOND END IN |
| Raised Face Nominal Height | 0.196 INCHES SECOND END IN |
| Nominal Thickness | 0.720 INCHES SECOND END 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 |
|---|---|
| SG-3881PIECE4 | Circor Pumps North America Llc (USA) |
| S-327AE PRIMARY | Circor Pumps North America Llc (USA) |
| Reference | Meaning |
|---|---|
| SG-3881 | D/9 Drawing number reference only Circor Pumps North America Llc |
| SG-3881 | 5/9 Secondary reference Siemens Energy, Inc. |
| S-327AE | 5/9 Secondary reference Siemens Energy, Inc. |
| SG-3881PIECE4 | 5/9 Secondary reference Siemens Energy, Inc. |
NSN 4730-01-151-5998 is a Adapter,straight,flange to Pipe, manufactured by Circor Pumps North America Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-151-5998 has 2 manufacturer part numbers on file: SG-3881PIECE4 (Circor Pumps North America Llc), S-327AE (Circor Pumps North America Llc).
Key specifications for S-327AE: Flange Shape: ROUND WITH HOLES SECOND END; Flange Face Design: RAISED STRAIGHT SECOND END; Connection Style: PLAIN (PIPE) FIRST END; Bolt Circle Nominal Diameter: 3.500 INCHES SECOND END IN. 15 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.