The Union,pipe, cataloged under National Stock Number 4730-00-189-2599, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-189-2599 |
| Primary Part Number | MIL-U-18250 |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Status | CANCELLED |
| Nominal Overall Length | 2.438 INCHES IN |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Coupling Flange Shape | HEXAGON |
| Reducer Type | CONCENTRIC |
| Nominal Thread Size | 1.000 INCHES ALL ENDS IN |
| Coupling Flange Shape | HEXAGON |
| Seat Type | GROUND-JOINT |
| Nominal Thread Size | 1.000 INCHES ALL ENDS IN |
| Seat Type | GROUND-JOINT |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Nominal Overall Length | 2.438 INCHES IN |
| Material | IRON OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Maximum Operating Temp | 218.0 CELSIUS SINGLE RESPONSE DEGC |
| Material Document and Classification | ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Material | IRON OVERALL |
| Style Designator | SCREWED |
| Style Designator | SCREWED |
| Nondefinitive Spec/std Data | XA TYPE |
| Material Document and Classification | ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nondefinitive Spec/std Data | XA TYPE |
| Thread Series Designator | NPT ALL ENDS |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MIL-U-18250 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| B16.39 | The American Society of Mechanical Engineers (USA) |
| 198E | Crane Co Div Valve Div (USA) |
| 198E-1IN | Crane Co Div Valve Div (USA) |
NSN 4730-00-189-2599 is a Union,pipe, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-189-2599 has 4 cross-referenced part numbers: MIL-U-18250 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), B16.39 (The American Society of Mechanical Engineers), 198E (Crane Co Div Valve Div), 198E-1IN (Crane Co Div Valve Div).
There are 12 known substitutes for 4730-00-189-2599: 4730-00-189-2598, 4730-00-189-2600, 4730-00-189-2602 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for MIL-U-18250: Nominal Overall Length: 2.438 INCHES IN; Media for Which Designed: STEAM SINGLE RESPONSE; Coupling Flange Shape: HEXAGON; Reducer Type: CONCENTRIC. 27 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-189-2599 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.