The Tee,pipe, cataloged under National Stock Number 4730-00-278-4422, 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 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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 | 4730-00-278-4422 |
| Primary Part Number | WWP521TYPE1 |
| Item Name | Tee,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Specification/standard Data | 81348-WW-P-521 GOVERNMENT SPECIFICATION |
| Material | IRON OR IRON ALLOY OVERALL |
| Nominal Thread Size | 3.000 INCHES FIRST END IN |
| Nondefinitive Spec/std Data | 1 TYPE |
| Thread Series Designator | NPT ALL ENDS |
| Leg Length | 1.953 INCHES NOMINAL SECOND END IN |
| Maximum Operating Temp | 500.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Leg Length | 2.469 INCHES MINIMUM AND 3.125 INCHES MAXIMUM THIRD END IN |
| Nominal Thread Size | 3.000 INCHES SECOND END IN |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Maximum Operating Temp | 148.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Nominal Thread Size | 0.750 INCHES THIRD END IN |
| Material Document and Classification | ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Leg Length | 1.953 INCHES NOMINAL FIRST END IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| WWP521TYPE1 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 4730-00-278-4422 is a Tee,pipe, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-278-4422 has 1 cross-referenced part number: WWP521TYPE1 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 12 known substitutes for 4730-00-278-4422: 4730-00-088-8576, 4730-00-203-8358, 4730-00-231-2410 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for WWP521TYPE1: Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE; Specification/standard Data: 81348-WW-P-521 GOVERNMENT SPECIFICATION; Material: IRON OR IRON ALLOY OVERALL. 19 total characteristics are documented in the Federal Logistics Information System.