The Union,pipe, cataloged under National Stock Number 4730-00-240-1677, 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 Demarkus Corp Refrigeration Engineering Corp. Government technical data includes 25 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 | 4730-00-240-1677 |
| Primary Part Number | BM11383-32 |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Demarkus Corp Refrigeration Engineering Corp |
| Status | CANCELLED |
| Style Designator | SCREWED |
| Material | IRON OR STEEL TAILPIECE |
| Reducer Type | CONCENTRIC |
| Nominal Thread Size | 1.250 INCHES ALL ENDS IN |
| Coupling Flange Shape | HEXAGON |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Seat Type | GROUND-JOINT |
| Nominal Overall Length | 2.260 INCHES IN |
| Material Document and Classification | QQ-I-666 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A47 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A197 ASSN STD 1ST MATERIAL RESPONSE OR ANSI G49.1 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A576 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A675 ASSN STD 2ND MATERIAL RESPONSE TAILPIECE |
| Material | IRON OR STEEL THREAD PIECE |
| Maximum Operating Temp | 450.0 FAHRENHEIT FIRST RESPONSE DEGF |
| Material Document and Classification | QQ-I-666 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A47 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A197 ASSN STD 1ST MATERIAL RESPONSE OR ANSI G49.1 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A576 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A675 ASSN STD 2ND MATERIAL RESPONSE THREAD PIECE |
| Operating Pressure | 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Thread Series Designator | NPT ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Material Document and Classification | WQQ-I-666 FED SPEC 1ST MATERIAL RESPONSE OR ASTM A47 ASSN STD 1ST MATERIAL RESPONSE OR HSTM A197 ASSN STD 1ST MATERIAL RESPONSE OR ANSI G49.1 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A576 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A675 ASSN STD 2ND MATERIAL RESPONSE NUT |
| Surface Treatment | ZINC OVERALL |
| Material | IRON OR STEEL NUT |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Material | COPPER ALLOY SEAT |
| Maximum Operating Temp | 450.0 FAHRENHEIT SECOND RESPONSE DEGF |
| Surface Treatment Document and Classification | QQ-Z-325,TYPE 2,CLASS 1 FED SPEC SINGLE TREATMENT RESPONSE OR ASTM A153,CLASS A ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Specification/standard Data | 81348-WW-U-531 GOVERNMENT SPECIFICATION |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| BM11383-32 | Demarkus Corp Refrigeration Engineering Corp (USA) |
| PT1280 | Crane Co Div Valve Div (USA) |
| ASME B16.39 | The American Society of Mechanical Engineers (USA) |
| WWU531-16TA | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| ASMEB16.39-16TA | The American Society of Mechanical Engineers (USA) |
| PT18 | Universal-Grabler Corp (USA) |
NSN 4730-00-240-1677 is a Union,pipe, manufactured by Demarkus Corp Refrigeration Engineering Corp, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-240-1677 has 6 cross-referenced part numbers: BM11383-32 (Demarkus Corp Refrigeration Engineering Corp), PT1280 (Crane Co Div Valve Div), ASME B16.39 (The American Society of Mechanical Engineers), WWU531-16TA (Federal Specifications Promulgated by General Services Administration Washington DC), ASMEB16.39-16TA (The American Society of Mechanical Engineers) and 1 more.
There are 12 known substitutes for 4730-00-240-1677: 6130-00-197-1990, 4730-00-240-1670, 4730-00-240-1671 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for BM11383-32: Style Designator: SCREWED; Material: IRON OR STEEL TAILPIECE; Reducer Type: CONCENTRIC; Nominal Thread Size: 1.250 INCHES ALL ENDS IN. 25 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-240-1677 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.