The Union,pipe, cataloged under National Stock Number 4730-01-306-6280, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-306-6280 |
| Primary Part Number | ASMEB16.39-39-T-A |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Operating Pressure | 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 1.250 INCHES FIRST END IN |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Specification/standard Data | 81348-WW-U-351 GOVERNMENT SPECIFICATION |
| Thread Series Designator | NPT SECOND END |
| Surface Treatment | ZINC OVERALL |
| Material | IRON ALLOY OVERALL |
| Nondefinitive Spec/std Data | 2 CLASS AND B TYPE |
| Thread Series Designator | NPT FIRST END |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Nominal Thread Size | 1.250 INCHES SECOND END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1B.250U | Ward Mfg Inc (USA) |
| B16.39 | The American Society of Mechanical Engineers (USA) |
| WWU531-39-T-A- | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| ASMEB16.39-39-T-A PRIMARY | The American Society of Mechanical Engineers (USA) |
| ASME-B16.39 | The American Society of Mechanical Engineers (USA) |
| WW-U-531 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 4730-01-306-6280 is a Union,pipe, manufactured by The American Society of Mechanical Engineers, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-01-306-6280 has 6 cross-referenced part numbers: 1B.250U (Ward Mfg Inc), B16.39 (The American Society of Mechanical Engineers), WWU531-39-T-A- (Federal Specifications Promulgated by General Services Administration Washington DC), ASMEB16.39-39-T-A (The American Society of Mechanical Engineers), ASME-B16.39 (The American Society of Mechanical Engineers) and 1 more.
There are 9 known substitutes for 4730-01-306-6280: 4730-00-189-2628, 4730-00-204-3392, 4730-00-266-3905 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for ASMEB16.39-39-T-A: Operating Pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Nominal Thread Size: 1.250 INCHES FIRST END IN; Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE; Specification/standard Data: 81348-WW-U-351 GOVERNMENT SPECIFICATION. 13 total characteristics are documented in the Federal Logistics Information System.