The Ring,piston, cataloged under National Stock Number 4310-00-872-7971, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Siemens Energy, Inc. Dba Dresser-Rand. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4310-00-872-7971 |
| Primary Part Number | 183217-B-87 |
| Item Name | Ring,piston |
| FSC / FSG | 4310 / 43 — No Item Name Available |
| Manufacturer | Siemens Energy, Inc. Dba Dresser-Rand |
| Status | CANCELLED |
| Material | STEEL OVERALL |
| Joint Style | STEP JOINT |
| Standard Bore Diameter | 2.125 INCHES IN |
| Radial Wall Thickness | 0.0900 INCHES NOMINAL IN |
| Ring Style | CONCENTRIC |
| Cross-Sectional Shape Style | PLAIN RECTANGULAR, STRAIGHT FACE |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 183217-B-87 | Siemens Energy, Inc. Dba Dresser-Rand (USA) |
| 183217PC87 | Ingersoll Rand Co (USA) |
| 37815B00 | Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA) |
| 183058-87A | Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA) |
| 37815 | Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA) |
| 183217-87 | Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA) |
| 37815C00 | Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA) |
| 183217-B-87 | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| 183058-87A | Ingersoll Rand Co (USA) |
| 37815A00 | Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA) |
| 183217-B-87 | Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA) |
| 17586 | Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA) |
NSN 4310-00-872-7971 is a Ring,piston, manufactured by Siemens Energy, Inc. Dba Dresser-Rand, classified under FSC 4310 (No Item Name Available). Status: cancelled.
NSN 4310-00-872-7971 has 12 cross-referenced part numbers: 183217-B-87 (Siemens Energy, Inc. Dba Dresser-Rand), 183217PC87 (Ingersoll Rand Co), 37815B00 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies), 183058-87A (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 37815 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies) and 7 more.
There are 11 known substitutes for 4310-00-872-7971: 5120-00-104-2236, 5985-00-252-3430, 5950-00-645-7329 and 8 more. Verify interchangeability with system specifications before substitution.
Key specifications for 183217-B-87: Material: STEEL OVERALL; Joint Style: STEP JOINT; Standard Bore Diameter: 2.125 INCHES IN; Overall Width: 0.1250 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.
NSN 4310-00-872-7971 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.