The Union,pipe, cataloged under National Stock Number 4730-00-287-0168, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 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 | 4730-00-287-0168 |
| Primary Part Number | ASMEB16.39-55-T-A |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | CANCELLED |
| Nominal Thread Size | 3.000 INCHES ALL ENDS IN |
| Coupling Flange Shape | HEXAGON |
| Style Designator | THREADED |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Series Designator | NPT ALL ENDS |
| Nondefinitive Spec/std Data | 3 CLASS |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Specification/standard Data | 81348-WW-U-531 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Nominal Overall Length | 3.500 INCHES IN |
| Seat Type | GROUND-JOINT |
| Material | IRON OVERALL |
| Nominal Pipe Size Accommodated | 3.000 INCHES ALL ENDS IN |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Reducer Type | CONCENTRIC |
| 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) |
| 34-4001-3 | Libby Power Systems, Llc (USA) |
| ASMEB16.39-55-T-A PRIMARY | The American Society of Mechanical Engineers (USA) |
| WWU53155TA | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 1601-500BLK | Flagg Stanley G & Co Inc Dba Flagg Brass (USA) |
| 1280-3INBLK | Crane Co Div Valve Div (USA) |
| 463-3INBLK | Itt Grinnell Corp (USA) |
| 7320-3IN | The Walworth Company (USA) |
| 463 3IN | Itt Grinnell Corp (USA) |
NSN 4730-00-287-0168 is a Union,pipe, manufactured by The American Society of Mechanical Engineers, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-287-0168 has 10 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), 34-4001-3 (Libby Power Systems, Llc), ASMEB16.39-55-T-A (The American Society of Mechanical Engineers), WWU53155TA (Federal Specifications Promulgated by General Services Administration Washington DC) and 5 more.
There are 8 known substitutes for 4730-00-287-0168: 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 ASMEB16.39-55-T-A: Nominal Thread Size: 3.000 INCHES ALL ENDS IN; Coupling Flange Shape: HEXAGON; Style Designator: THREADED; Operating Pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 15 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-287-0168 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.