The Union,pipe, cataloged under National Stock Number 4730-00-266-3906, 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 The American Society of Mechanical Engineers. Government technical data includes 24 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-266-3906 |
| Primary Part Number | ASMEB16.39-04-T-A |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | CANCELLED |
| Specification/standard Data | 81348-WW-U-531 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION |
| 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 |
| Reducer Type | CONCENTRIC |
| Nominal Thread Size | 0.750 INCHES ALL ENDS IN |
| Coupling Flange Shape | HEXAGON |
| Maximum Operating Temp | 450.0 FAHRENHEIT SECOND RESPONSE DEGF |
| 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 NUT |
| Material | IRON OR STEEL NUT |
| Material | COPPER ALLOY SEAT |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Connection Type | THREADED INTERNAL PIPE ALL ENDS |
| Style Designator | SCREWED |
| Seat Type | GROUND-JOINT |
| Thread Series Designator | NPT ALL ENDS |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS |
| Nondefinitive Spec/std Data | 1 CLASS AND A TYPE |
| 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 TAILPIECE |
| Material | IRON OR STEEL THREAD PIECE |
| Media for Which Designed | WATER-OIL-GAS SECOND RESPONSE |
| Media for Which Designed | STEAM FIRST RESPONSE |
| Nominal Overall Length | 1.940 INCHES IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| ASME-B16.39 | The American Society of Mechanical Engineers (USA) |
| ASMEB16.39-04-T-A PRIMARY | The American Society of Mechanical Engineers (USA) |
| WWU531-04TA | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| 463 3-4 | Itt Grinnell Corp (USA) |
NSN 4730-00-266-3906 is a Union,pipe, manufactured by The American Society of Mechanical Engineers, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-266-3906 has 4 cross-referenced part numbers: ASME-B16.39 (The American Society of Mechanical Engineers), ASMEB16.39-04-T-A (The American Society of Mechanical Engineers), WWU531-04TA (Federal Specifications Promulgated by General Services Administration Washington DC), 463 3-4 (Itt Grinnell Corp).
There are 2 known substitutes for 4730-00-266-3906: 5120-00-188-3251, 4720-01-583-8198. Verify interchangeability with system specifications before substitution.
Key specifications for ASMEB16.39-04-T-A: Specification/standard Data: 81348-WW-U-531 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION; 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; Reducer Type: CONCENTRIC. 24 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-266-3906 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.