The Rotor,engine Poppet Valve, cataloged under National Stock Number 2805-00-354-6439, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 2805-00-354-6439 |
| Primary Part Number | 31-475 |
| Item Name | Rotor,engine Poppet Valve |
| FSC / FSG | 2805 / 28 — No Item Name Available |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | CANCELLED |
| Bore Diameter | 0.652 INCHES NOMINAL IN |
| Tapered Bore Included Angle in Deg | 14 DEG,15 MIN |
| Starting Load Range | +65.0 TO 155.0 POUNDS LBS |
| Style Designator | POSITIVE TYPE-TAPERED BORE |
| FSC Application Data | GASOLINE ENGINE,NONAIRCRAFT |
| Second Step Length | 0.280 INCHES NOMINAL IN |
| Second Step Diameter | 1.375 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN |
| Rotation Direction | COUNTERCLOCKWISE |
| First Step Diameter | 0.949 INCHES MINIMUM AND 0.954 INCHES MAXIMUM IN |
| First Step Length | 0.104 INCHES MINIMUM AND 0.114 INCHES MAXIMUM IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 8333165 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 31-475 | Dresser, Llc (USA) |
| RC38 | Associated Spring Us, Llc Div Corry (USA) |
| FRRA41A | Eaton Corp Dba Eaton Aerospace Jackson (USA) |
| 31-475 PRIMARY | Dresser Industries Inc Leroi Div (USA) |
| 810276 | Dresser, Llc (USA) |
| B600I3220 | Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc (USA) |
NSN 2805-00-354-6439 is a Rotor,engine Poppet Valve, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 2805 (No Item Name Available). Status: cancelled.
NSN 2805-00-354-6439 has 7 cross-referenced part numbers: 8333165 (U S Army Tank Automotive Command Amsta-Im-Mm), 31-475 (Dresser, Llc), RC38 (Associated Spring Us, Llc Div Corry), FRRA41A (Eaton Corp Dba Eaton Aerospace Jackson), 31-475 (Dresser Industries Inc Leroi Div) and 2 more.
There are 8 known substitutes for 2805-00-354-6439: 2940-00-541-3499, 5905-00-727-9750, 5905-00-926-8707 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 31-475: Bore Diameter: 0.652 INCHES NOMINAL IN; Overall Height: 0.530 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN; Tapered Bore Included Angle in Deg: 14 DEG,15 MIN; Starting Load Range: +65.0 TO 155.0 POUNDS LBS. 11 total characteristics are documented in the Federal Logistics Information System.
NSN 2805-00-354-6439 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.