The O-Ring, cataloged under National Stock Number 5331-00-663-5709, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-00-663-5709 |
| Primary Part Number | 2-250N951-75 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | CANCELLED |
| Temp Rating | -25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF |
| Center Hole Diameter | 4.969 INCHES MINIMUM AND 4.999 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Outside Diameter | 5.219 INCHES MINIMUM AND 5.305 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC |
| Elongation Percentage | 125 MAXIMUM |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 5F-3106 | Finning (uk) Ltd (GBR) |
| 5F3106 | Westrac Pty Ltd (AUS) |
| 5F3106 | Hastings Deering (aust) Pty Ltd (AUS) |
| 8T7130 | Caterpillar Inc Div Caterpillar Defense (USA) |
| 2-250N951-75 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 5F3106 | William Adams Pty Ltd (AUS) |
| 5F3106 PRIMARY | Caterpillar Inc Div Caterpillar Defense (USA) |
| 154106 | Eaton Aerospace, Llc Dba Jackson South (USA) |
| 5F-3106 | Navantia - Propulsion Y Energia Motores - Cartagena (ESP) |
NSN 5331-00-663-5709 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331 (O-Ring). Status: cancelled.
NSN 5331-00-663-5709 has 9 cross-referenced part numbers: 5F-3106 (Finning (uk) Ltd), 5F3106 (Westrac Pty Ltd), 5F3106 (Hastings Deering (aust) Pty Ltd), 8T7130 (Caterpillar Inc Div Caterpillar Defense), 2-250N951-75 (Parker-Hannifin Corp Div O-Ring Division) and 4 more.
There are 4 known substitutes for 5331-00-663-5709: 3040-00-244-0079, 5331-00-339-6220, 5340-00-676-6943 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for 2-250N951-75: Temp Rating: -25.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF; Center Hole Diameter: 4.969 INCHES MINIMUM AND 4.999 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 7 total characteristics are documented in the Federal Logistics Information System.
NSN 5331-00-663-5709 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.