The Elbow,flange to Boss, cataloged under National Stock Number 4730-01-257-3703, 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 Wacker Corp. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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 | 4730-01-257-3703 |
| Primary Part Number | 70643 |
| Item Name | Elbow,flange to Boss |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Wacker Corp |
| Status | ACTIVE |
| Flange Shape | OVAL WITH HOLES FIRST END |
| Connection Type | FLANGE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Bolt Hole Quantity | 2 FIRST END |
| Flow Angle | 45.0 DEGREES |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 70643 PRIMARY | Wacker Corp (USA) |
NSN 4730-01-257-3703 is a Elbow,flange to Boss, manufactured by Wacker Corp, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-01-257-3703 has 1 cross-referenced part number: 70643 (Wacker Corp).
There are 4 known substitutes for 4730-01-257-3703: 5315-00-359-0752, 5310-00-498-4999, 4510-00-961-7286 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 70643: Special Features: DUAL AIR HOSE FITTING; Flange Shape: OVAL WITH HOLES FIRST END; Connection Type: FLANGE FIRST END; Connection Type: THREADED EXTERNAL BOSS SECOND END. 6 total characteristics are documented in the Federal Logistics Information System.