The Union,pipe, cataloged under National Stock Number 4730-00-839-7486, 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 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-839-7486 |
| Primary Part Number | ASMEB16.39-19-T-A |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | CANCELLED |
| Material | IRON OR STEEL THREAD PIECE |
| Thread Series Designator | NPT FIRST END |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| 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 |
| Material | IRON OR STEEL TAILPIECE |
| Material | COPPER ALLOY SEAT |
| Material | IRON OR STEEL NUT |
| Surface Treatment Document and Classification | AQQ-Z-325,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE OR ASTM A153,CLASS A ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Specification/standard Data | 81348-WW-U-531 GOVERNMENT SPECIFICATION |
| Seat Type | GROUND-JOINT |
| Nominal Overall Length | 3.220 INCHES IN |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Connection Style | PLAIN (PIPE) FIRST END |
| Maximum Operating Temp | 450.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Nominal Thread Size | 2.500 INCHES FIRST END IN |
| 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 |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Media for Which Designed | STEAM FIRST RESPONSE |
| 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 |
| Maximum Operating Temp | 450.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Surface Treatment | ZINC OVERALL |
| Nondefinitive Spec/std Data | 1 CLASS AND B TYPE |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| ASME-B16.39 | The American Society of Mechanical Engineers (USA) |
| WW-U-531 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| ASMEB16.39-19-T-A PRIMARY | The American Society of Mechanical Engineers (USA) |
| 1280 1-2 2 1-2IN | Crane Co Div Valve Div (USA) |
| WWU531-19TA | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 4730-00-839-7486 is a Union,pipe, manufactured by The American Society of Mechanical Engineers, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-839-7486 has 5 cross-referenced part numbers: ASME-B16.39 (The American Society of Mechanical Engineers), WW-U-531 (Federal Specifications Promulgated by General Services Administration Washington DC), ASMEB16.39-19-T-A (The American Society of Mechanical Engineers), 1280 1-2 2 1-2IN (Crane Co Div Valve Div), WWU531-19TA (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 8 known substitutes for 4730-00-839-7486: 4730-00-204-3392, 4730-00-266-3905, 4730-00-287-0166 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for ASMEB16.39-19-T-A: Material: IRON OR STEEL THREAD PIECE; Thread Series Designator: NPT FIRST END; Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS; 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. 23 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-839-7486 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.