The Union,pipe, cataloged under National Stock Number 4730-00-189-2602, 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 Flaton Machine Works Inc.. Government technical data includes 28 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 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 | 4730-00-189-2602 |
| Primary Part Number | 1631-400 |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Flaton Machine Works Inc. |
| Status | CANCELLED |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Material | IRON OVERALL |
| Material Document and Classification | QQ-I-666 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM A-197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Coupling Flange Shape | HEXAGON |
| Material | IRON OVERALL |
| Nondefinitive Spec/std Data | XA TYPE |
| Seat Type | BEVELED |
| Reducer Type | CONCENTRIC |
| Nominal Thread Size | 2.000 INCHES ALL ENDS IN |
| Coupling Flange Shape | HEXAGON |
| Maximum Operating Temp | 218.0 CELSIUS SINGLE RESPONSE DEGC |
| Nominal Overall Length | 3.375 INCHES IN |
| Thread Series Designator | NPT ALL ENDS |
| Nondefinitive Spec/std Data | XA TYPE |
| Nominal Overall Length | 3.375 INCHES IN |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Specification/standard Data | 81349-MIL-U-18250 GOVERNMENT SPECIFICATION |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Seat Type | BEVELED |
| Specification/standard Data | 81349-MIL-U-18250 GOVERNMENT SPECIFICATION |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Nominal Thread Size | 2.000 INCHES ALL ENDS IN |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Style Designator | SCREWED |
| Material Document and Classification | QQ-I-666 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM A-197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| Style Designator | SCREWED |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 1631-400 PRIMARY | Flaton Machine Works Inc. (USA) |
| MILU18250 | Mindeco Corp (USA) |
| 198E2 | Crane Co Div Valve Div (USA) |
| MILU18250TYPEXA | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| B16.39 | American National Standards Institute Incorporated Dba American National Standards Institute (USA) |
| 819E2 | Crane Co Div Valve Div (USA) |
NSN 4730-00-189-2602 is a Union,pipe, manufactured by Flaton Machine Works Inc., classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-189-2602 has 6 cross-referenced part numbers: 1631-400 (Flaton Machine Works Inc.), MILU18250 (Mindeco Corp), 198E2 (Crane Co Div Valve Div), MILU18250TYPEXA (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), B16.39 (American National Standards Institute Incorporated Dba American National Standards Institute) and 1 more.
There are 12 known substitutes for 4730-00-189-2602: 5310-00-152-8420, 4730-00-189-2596, 4730-00-189-2597 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1631-400: Media for Which Designed: STEAM SINGLE RESPONSE; Material: IRON OVERALL; Material Document and Classification: QQ-I-666 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM A-197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Coupling Flange Shape: HEXAGON. 28 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-189-2602 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.