The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-00-595-2191, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-595-2191 |
| Primary Part Number | 251894 |
| Item Name | Adapter,straight,tube to Boss |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | CANCELLED |
| Thread Class | 2A SECOND END A |
| Thread Class | 3A FIRST END A |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Connection Style | FLARED (TUBE) FIRST END |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Thread Series Designator | UNF ALL ENDS |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.250 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES FIRST END |
| Surface Treatment | PASSIVATE OVERALL |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Nominal Overall Length | 1.280 INCHES IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 251894 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 251894 | Mil-Craft Mfg., Inc. (USA) |
| 251894 | Turbo Power & Marine System Inc Sub of United Technologies Corp (USA) |
| 330038 | Royal Oak Gage, Inc (USA) |
| 251894 | Royal Oak Gage, Inc (USA) |
| 330038 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 4730-00-595-2191 is a Adapter,straight,tube to Boss, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-595-2191 has 6 cross-referenced part numbers: 251894 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 251894 (Mil-Craft Mfg., Inc.), 251894 (Turbo Power & Marine System Inc Sub of United Technologies Corp), 330038 (Royal Oak Gage, Inc), 251894 (Royal Oak Gage, Inc) and 1 more.
There are 3 known substitutes for 4730-00-595-2191: 5930-00-456-2279, 5945-01-412-5983, 4330-01-623-0277. Verify interchangeability with system specifications before substitution.
Key specifications for 251894: Thread Class: 2A SECOND END A; Thread Class: 3A FIRST END A; Connection Type: THREADED EXTERNAL BOSS SECOND END; Nominal Thread Size: 0.750 INCHES SECOND END IN. 15 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-595-2191 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.