The Ring,piston, cataloged under National Stock Number 2805-00-273-0398, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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 | 2805-00-273-0398 |
| Primary Part Number | 18-259 |
| Item Name | Ring,piston |
| FSC / FSG | 2805 / 28 — No Item Name Available |
| Manufacturer | Dresser Industries Inc Leroi Div |
| Status | CANCELLED |
| Radial Wall Thickness | 0.1540 INCHES MINIMUM AND 0.1640 INCHES MAXIMUM IN |
| Ring Style | CONCENTRIC |
| Joint Style | VERTICAL JOINT |
| Standard Bore Diameter | 3.750 INCHES IN |
| Cross-Sectional Shape Style | STRAIGHT FACE, BOTTOM RELIEF |
| Material | IRON OVERALL |
| Surface Treatment | PHOSPHATE OVERALL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
NSN 2805-00-273-0398 is a Ring,piston, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 2805 (No Item Name Available). Status: cancelled.
NSN 2805-00-273-0398 has 2 cross-referenced part numbers: 34472 (Dana Corp Engine Products Div), 18-259 (Dresser Industries Inc Leroi Div).
There are 8 known substitutes for 2805-00-273-0398: 5935-00-478-7377, 1650-00-513-4900, 2995-00-909-9936 and 5 more. Verify interchangeability with system specifications before substitution.
Key specifications for 18-259: Radial Wall Thickness: 0.1540 INCHES MINIMUM AND 0.1640 INCHES MAXIMUM IN; Overall Width: 0.1235 INCHES MINIMUM AND 0.1245 INCHES MAXIMUM IN; Ring Style: CONCENTRIC; Joint Style: VERTICAL JOINT. 8 total characteristics are documented in the Federal Logistics Information System.
NSN 2805-00-273-0398 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.