The Flange,pipe, cataloged under National Stock Number 4730-00-177-1815, 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 Derbyshire Machine & Tool Co. Government technical data includes 15 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-177-1815 |
| Primary Part Number | SS845-1889817 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Material | STEEL |
| Face Seating Surface Condition | MACHINED |
| Material Document and Classification | MIL-S-16113,T1 MIL STD SINGLE MATERIAL RESPONSE |
| Thread Class | 2B |
| Screw Thread Series Designator | UNF |
| Flange Diameter | 3.813 INCHES NOMINAL IN |
| Bolt Circle Diameter | 2.437 INCHES NOMINAL IN |
| Bolt Hole Diameter | 0.380 INCHES NOMINAL IN |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Quantity | 4 |
| Nominal Thread Size | 0.562 INCHES IN |
| Thickness | 0.500 INCHES NOMINAL IN |
| Furnished Items | GASKET |
| Flange Section Style | PLAIN FACE |
| Tube Outside Diameter for Which Designed | 0.375 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| SS845-1889817 PRIMARY | Derbyshire Machine & Tool Co (USA) |
| 2641-068ASSYIRM | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
| SS845-1889817 PRIMARY | Naval Ship Systems Command (USA) |
| 2640-068REVWASSYRMPC17 PRIMARY | Electric Boat Corporation Div General Dynamics Electric Boat (USA) |
NSN 4730-00-177-1815 is a Flange,pipe, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-177-1815 has 4 cross-referenced part numbers: SS845-1889817 (Derbyshire Machine & Tool Co), 2641-068ASSYIRM (Electric Boat Corporation Div General Dynamics Electric Boat), SS845-1889817 (Naval Ship Systems Command), 2640-068REVWASSYRMPC17 (Electric Boat Corporation Div General Dynamics Electric Boat).
There are 4 known substitutes for 4730-00-177-1815: 4730-00-064-8584, 4730-00-064-8585, 4730-00-893-3768 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for SS845-1889817: Material: STEEL; Face Seating Surface Condition: MACHINED; Material Document and Classification: MIL-S-16113,T1 MIL STD SINGLE MATERIAL RESPONSE; Thread Class: 2B. 15 total characteristics are documented in the Federal Logistics Information System.