The O-Ring, cataloged under National Stock Number 5331-00-420-1961, 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 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-420-1961 |
| Primary Part Number | 15894APC16 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Propulsion Systems, Inc. |
| Status | ACTIVE |
| Center Hole Diameter | 1.228 INCHES MINIMUM AND 1.240 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| R138 | Propulsion Systems, Inc. (USA) |
| 15894APC16 PRIMARY | Propulsion Systems, Inc. (USA) |
NSN 5331-00-420-1961 is a O-Ring, manufactured by Propulsion Systems, Inc., classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-420-1961 has 2 cross-referenced part numbers: R138 (Propulsion Systems, Inc.), 15894APC16 (Propulsion Systems, Inc.).
There are 3 known substitutes for 5331-00-420-1961: 4320-00-218-4474, 5310-00-358-8344, 5331-01-090-3984. Verify interchangeability with system specifications before substitution.
Key specifications for 15894APC16: Center Hole Diameter: 1.228 INCHES MINIMUM AND 1.240 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 3 total characteristics are documented in the Federal Logistics Information System.