The O-Ring, cataloged under National Stock Number 5331-00-007-6116, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives 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 8 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-007-6116 |
| Primary Part Number | RNG1721 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Siemens Energy, Inc. Dba Dresser-Rand |
| Status | ACTIVE |
| Cross-Sectional Height | 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Outside Diameter | 8.525 INCHES NOMINAL IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Material | RUBBER SYNTHETIC |
| Center Hole Diameter | 7.945 INCHES MINIMUM AND 8.005 INCHES MAXIMUM IN |
| Temp Rating | -35.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| RNG1721 | Siemens Energy, Inc. Dba Dresser-Rand (USA) |
| AS568-445 | Society of Automotive Engineers Inc (USA) |
| AS568-445 | Sae International Dba Sae International (USA) |
| RNG1721 | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| RNG1721 | Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA) |
| PRP568-445-4200-70 | Parco, Llc (USA) |
| ASTMD2000 | American Society for Testing and Materials Dba Astm International (USA) |
| 2-445N674-70 | Parker-Hannifin Corp Div O-Ring Division (USA) |
NSN 5331-00-007-6116 is a O-Ring, manufactured by Siemens Energy, Inc. Dba Dresser-Rand, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-007-6116 has 8 cross-referenced part numbers: RNG1721 (Siemens Energy, Inc. Dba Dresser-Rand), AS568-445 (Society of Automotive Engineers Inc), AS568-445 (Sae International Dba Sae International), RNG1721 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), RNG1721 (Dresser-Rand Co Worthington Compressor Opn a Joint Venture) and 3 more.
There is 1 known substitute for 5331-00-007-6116: 5331-01-066-4456. Verify interchangeability with system specifications before substitution.
Key specifications for RNG1721: Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Outside Diameter: 8.525 INCHES NOMINAL IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Material: RUBBER SYNTHETIC. 6 total characteristics are documented in the Federal Logistics Information System.