The Flange,pipe, cataloged under National Stock Number 4730-01-253-0943, 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 Naval Inventory Control Point Mechanicsburg. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-253-0943 |
| Primary Part Number | ANSI B16.5 CL600 SW 1 1/2IN S1 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Socket Diameter | 1.950 INCHES NOMINAL IN |
| Flange Diameter | 6.125 INCHES NOMINAL IN |
| Face Seating Surface Condition | UNFINISHED |
| Nominal Pipe Size for Which Designed | 1.500 INCHES IN |
| Socket Depth | 0.625 INCHES NOMINAL IN |
| Flange Section Style | RAISED FACE, SOCKET NECK |
| Criticality Code Justification | ZZZW |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.750 INCHES NOMINAL IN |
| Neck Height | 0.375 INCHES NOMINAL IN |
| Departure From Cited Document | QUALITY CONTROLLED IN ACCORDANCE WITH NAVSUP CONTROL INSTRUCTIONS FOR SURFACE LEVEL 1 ITEMS |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 4.500 INCHES NOMINAL IN |
| Raised Face Diameter | 2.875 INCHES NOMINAL IN |
| Raised Face Height | 0.250 INCHES NOMINAL IN |
| Material | STEEL |
| 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 | S |
| Part Number | Manufacturer |
|---|---|
| ANSI B16.5 CL600 SW 1 1/2IN S1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| ANSI B16.5 CL600 SW 1 1/2IN | 3/1 Design control — primary reference U.S. Government activity |
NSN 4730-01-253-0943 is a Flange,pipe, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-253-0943 has 1 manufacturer part number on file: ANSI B16.5 CL600 SW 1 1/2IN S1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for ANSI B16.5 CL600 SW 1 1/2IN S1: Socket Diameter: 1.950 INCHES NOMINAL IN; Flange Diameter: 6.125 INCHES NOMINAL IN; Face Seating Surface Condition: UNFINISHED; Nominal Pipe Size for Which Designed: 1.500 INCHES IN. 17 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.