The Union,pipe, cataloged under National Stock Number 4730-00-189-2639, 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 26 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 | 4730-00-189-2639 |
| 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 |
| Material Document and Classification | ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nondefinitive Spec/std Data | XB TYPE |
| Nominal Overall Length | 3.260 INCHES IN |
| Thread Series Designator | NPT ALL ENDS |
| Coupling Flange Shape | HEXAGON |
| Reducer Type | CONCENTRIC |
| Nominal Thread Size | 2.000 INCHES ALL ENDS IN |
| Coupling Flange Shape | HEXAGON |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Nominal Overall Length | 3.260 INCHES IN |
| Material Document and Classification | ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Material | IRON OVERALL |
| Seat Type | BEVELED |
| Nondefinitive Spec/std Data | XB TYPE |
| Maximum Operating Temp | 232.0 CELSIUS SINGLE RESPONSE DEGC |
| Surface Treatment | ZINC AND DICHROMATE OVERALL |
| Style Designator | SCREWED |
| Style Designator | SCREWED |
| Material | IRON OVERALL |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Surface Treatment | ZINC AND DICHROMATE OVERALL |
| Seat Type | BEVELED |
| Thread Series Designator | NPT ALL ENDS |
| Nominal Thread Size | 2.000 INCHES ALL ENDS IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| B16.39 | The American Society of Mechanical Engineers (USA) |
| ANSI B16.39 | American National Standards Institute Incorporated Dba American National Standards Institute (USA) |
| MIL-U-18250 | Mindeco Corp (USA) |
NSN 4730-00-189-2639 is a Union,pipe, manufactured by The American Society of Mechanical Engineers, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-189-2639 has 3 cross-referenced part numbers: B16.39 (The American Society of Mechanical Engineers), ANSI B16.39 (American National Standards Institute Incorporated Dba American National Standards Institute), MIL-U-18250 (Mindeco Corp).
There are 12 known substitutes for 4730-00-189-2639: 4730-00-189-2598, 4730-00-189-2599, 4730-00-189-2600 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for B16.39: Material Document and Classification: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Nondefinitive Spec/std Data: XB TYPE; Nominal Overall Length: 3.260 INCHES IN. 26 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-189-2639 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.