The Union,pipe, cataloged under National Stock Number 4730-00-266-3908, 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 Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 21 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: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-266-3908 |
| Primary Part Number | WWU531-07TA |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Nondefinitive Spec/std Data | 1 CLASS AND A TYPE |
| Nominal Thread Size | 1.500 INCHES FIRST END IN |
| Connection Style | PLAIN (PIPE) FIRST END |
| Material | IRON OR STEEL NUT |
| Maximum Operating Temp | 450.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Material | COPPER ALLOY SEAT |
| 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 |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Maximum Operating Temp | 450.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Nominal Overall Length | 2.410 INCHES IN |
| Seat Type | GROUND-JOINT |
| Thread Series Designator | NPT FIRST END |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Material | IRON OR STEEL TAILPIECE |
| 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 |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Material | IRON OR STEEL THREAD PIECE |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Specification/standard Data | 81348-WW-U-531 GOVERNMENT SPECIFICATION |
| 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 | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| WWU531-07TA | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| ASME B16.39 | The American Society of Mechanical Engineers (USA) |
| PT1280 | Crane Co Div Valve Div (USA) |
NSN 4730-00-266-3908 is a Union,pipe, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-266-3908 has 3 cross-referenced part numbers: WWU531-07TA (Federal Specifications Promulgated by General Services Administration Washington DC), ASME B16.39 (The American Society of Mechanical Engineers), PT1280 (Crane Co Div Valve Div).
There are 12 known substitutes for 4730-00-266-3908: 4730-00-240-1670, 4730-00-240-1671, 4730-00-240-1672 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for WWU531-07TA: Nondefinitive Spec/std Data: 1 CLASS AND A TYPE; Nominal Thread Size: 1.500 INCHES FIRST END IN; Connection Style: PLAIN (PIPE) FIRST END; Material: IRON OR STEEL NUT. 21 total characteristics are documented in the Federal Logistics Information System.