The Union,pipe, cataloged under National Stock Number 4730-01-113-4546, 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 17 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-113-4546 |
| Primary Part Number | M1818248C |
| 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 | ACTIVE |
| Material Document and Classification | ASTM-A105-76 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Surface Treatment | CADMIUM OVERALL |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Material | STEEL OVERALL |
| Thread Series Designator | NPT ALL ENDS |
| Nominal Thread Size | 0.500 INCHES ALL ENDS IN |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Overall Length | 2.500 INCHES IN |
| Surface Treatment Document and Classification | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | THREADED |
| Reducer Type | CONCENTRIC |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Specification/standard Data | 81349-MIL-U-18182 GOVERNMENT SPECIFICATION |
| Coupling Flange Shape | HEXAGON |
| Seat Type | GASKET |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Furnished Items and Quantity | 1 SHORT COUPLING NUT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| M1818248C | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-U-18182 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 14-01-6852 | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
NSN 4730-01-113-4546 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: active.
NSN 4730-01-113-4546 has 3 cross-referenced part numbers: M1818248C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-U-18182 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 14-01-6852 (Electric Boat Corporation Div General Dynamics Electric Boat).
There are 11 known substitutes for 4730-01-113-4546: 4730-00-066-1110, 4730-00-076-8608, 4730-00-222-1860 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for M1818248C: Special Features: LENGTH CAN BE COMPROMISED; Material Document and Classification: ASTM-A105-76 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Surface Treatment: CADMIUM OVERALL; Connection Style: PLAIN (PIPE) ALL ENDS. 18 total characteristics are documented in the Federal Logistics Information System.