The Tee,pipe, cataloged under National Stock Number 4730-01-074-6556, 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 Walworth Company. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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 | 4730-01-074-6556 |
| Primary Part Number | 3655-3/4 |
| Item Name | Tee,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | The Walworth Company |
| Status | ACTIVE |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Material | COPPER ALLOY OVERALL |
| Operating Pressure | 1300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Nominal Pipe Size Accommodated | 0.750 INCHES ALL ENDS IN |
| Connection Style | STREAMLINED W/ ONE BRAZING RING (PIPE) ALL ENDS |
| Maximum Operating Temp | 500.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Leg Length | 1.438 INCHES NOMINAL ALL ENDS IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 200114L PC287 | Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA) |
| 3655-3/4 PRIMARY | The Walworth Company (USA) |
| 3655 | The Walworth Company (USA) |
NSN 4730-01-074-6556 is a Tee,pipe, manufactured by The Walworth Company, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-01-074-6556 has 3 cross-referenced part numbers: 200114L PC287 (Dresser-Rand Co Worthington Compressor Opn a Joint Venture), 3655-3/4 (The Walworth Company), 3655 (The Walworth Company).
There are 12 known substitutes for 4730-01-074-6556: 4320-00-019-8941, 6740-00-103-3458, 5220-00-215-2206 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 3655-3/4: Media for Which Designed: STEAM FIRST RESPONSE; Material: COPPER ALLOY OVERALL; Operating Pressure: 1300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS; Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE. 10 total characteristics are documented in the Federal Logistics Information System.