The O-Ring, cataloged under National Stock Number 5331-01-039-3076, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Propulsion Systems, Inc.. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 25 commercial cross-references from 17 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5331-01-039-3076 |
| Primary Part Number | R4512 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Propulsion Systems, Inc. |
| Status | CANCELLED |
| Elongation Percentage | 160 MAXIMUM |
| Center Hole Diameter | 5.074 INCHES MINIMUM AND 5.144 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC |
| Outside Diameter | 5.387 INCHES NOMINAL IN |
| Cross-Sectional Height | 3.530 MILLIMETERS NOMINAL MM |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| R4512 PRIMARY | Propulsion Systems, Inc. (USA) |
| MS28775-251 | Hunt Valve Company, Inc. (USA) |
| 55-22036 PART 1 | Euramco Safety Inc (USA) |
| R4512 | Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations (USA) |
| MS28775-251 | Hunt Valve Company Inc Dba Union Flonetics (USA) |
| 412.3410.0000 | Zf Industrieantriebe Witten Gmbh (DEU) |
| M28775-251 | Zf Industrieantriebe Witten Gmbh (DEU) |
| SAE-AS28775 | Sae International Dba Sae International (USA) |
| R4512 | Parker-Hannifin Corporation Dba Hydraulic Filter Division Div Hydraulic & Fuel Filter Division (USA) |
| MIL-P-25732 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MS28775-251 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| NR028202235 | Airbus Helicopters (ets De Marignane) (FRA) |
| 1-11-150-43 | Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations (USA) |
| MS28775-251 PRIMARY | Sae International Dba Sae International (USA) |
| MS28775-251 | Society of Automotive Engineers Inc (USA) |
| 129,77X3,53-24B7 | Stacem (FRA) |
| 54-62-3029 | Zf Industrieantriebe Witten Gmbh (DEU) |
| 2-251 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 872-0292-204 | Zf Industrieantriebe Witten Gmbh (DEU) |
| ARP251 | Zf Industrieantriebe Witten Gmbh (DEU) |
NSN 5331-01-039-3076 is a O-Ring, manufactured by Propulsion Systems, Inc., classified under FSC 5331 (O-Ring). Status: cancelled.
NSN 5331-01-039-3076 has 25 cross-referenced part numbers: R4512 (Propulsion Systems, Inc.), MS28775-251 (Hunt Valve Company, Inc.), 55-22036 PART 1 (Euramco Safety Inc), R4512 (Parker Hannifin Corporation Div Hydraulic Filter Division, Fairey Arlon Operations), MS28775-251 (Hunt Valve Company Inc Dba Union Flonetics) and 20 more.
There are 12 known substitutes for 5331-01-039-3076: 5330-00-054-6887, 5330-00-106-5553, 6230-00-164-6605 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for R4512: Elongation Percentage: 160 MAXIMUM; Center Hole Diameter: 5.074 INCHES MINIMUM AND 5.144 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC; Outside Diameter: 5.387 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.
NSN 5331-01-039-3076 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.