The Union,pipe, cataloged under National Stock Number 4730-00-189-2633, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-189-2633 |
| Primary Part Number | B16.39 |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | CANCELLED |
| Thread Series Designator | NPT ALL ENDS |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Surface Treatment | ZINC OVERALL |
| Surface Treatment | ZINC OVERALL |
| Material Document and Classification | QQ-I-666 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A47 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A197 ASSN STD 1ST MATERIAL RESPONSE OR ANSI G49.1 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A576 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A675 ASSN STD 2ND MATERIAL RESPONSE NUT |
| Style Designator | SCREWED |
| Reducer Type | CONCENTRIC |
| Nominal Thread Size | 1.500 INCHES ALL ENDS IN |
| Coupling Flange Shape | HEXAGON |
| Material Document and Classification | QQ-I-666 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A47 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A197 ASSN STD 1ST MATERIAL RESPONSE OR ANSI G49.1 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A576 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A675 ASSN STD 2ND MATERIAL RESPONSE THREAD PIECE |
| Surface Treatment Document and Classification | QQ-Z-325,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE OR ASTM A153,CLASS A ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Nominal Overall Length | 2.780 INCHES IN |
| Coupling Flange Shape | HEXAGON |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Surface Treatment Document and Classification | QQ-Z-325,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE OR ASTM A153,CLASS A ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Material | IRON OR STEEL NUT |
| Operating Pressure | 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Maximum Operating Temp | 450.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Material | COPPER ALLOY SEAT |
| Thread Series Designator | NPT ALL ENDS |
| Material Document and Classification | QQ-I-666 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A47 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A197 ASSN STD 1ST MATERIAL RESPONSE OR ANSI G49.1 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A576 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A675 ASSN STD 2ND MATERIAL RESPONSE TAILPIECE |
| Operating Pressure | 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Material | IRON OR STEEL TAILPIECE |
| Nominal Overall Length | 2.780 INCHES IN |
| Material | IRON OR STEEL THREAD PIECE |
| Material | IRON OR STEEL THREAD PIECE |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Seat Type | GROUND-JOINT |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| B16.39 | The American Society of Mechanical Engineers (USA) |
| WWU531-40TA | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 7765 | The Walworth Company (USA) |
NSN 4730-00-189-2633 is a Union,pipe, manufactured by The American Society of Mechanical Engineers, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-189-2633 has 3 cross-referenced part numbers: B16.39 (The American Society of Mechanical Engineers), WWU531-40TA (Federal Specifications Promulgated by General Services Administration Washington DC), 7765 (The Walworth Company).
There are 12 known substitutes for 4730-00-189-2633: 4730-00-118-5103, 2590-00-132-7767, 4720-00-147-1746 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for B16.39: Thread Series Designator: NPT ALL ENDS; Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS; Surface Treatment: ZINC OVERALL; Surface Treatment: ZINC OVERALL. 30 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-189-2633 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.