The O-Ring, cataloged under National Stock Number 5331-01-203-6549, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Jednolity Indeks Materialowy - Uniform Material Index. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-203-6549 |
| Primary Part Number | 5331PL1282818 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Jednolity Indeks Materialowy - Uniform Material Index |
| Status | ACTIVE |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Hardness Rating | 90.0 SHORE DUROMETER A NOMINAL |
| Center Hole Diameter | 1.228 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN |
| Outside Diameter | 1.379 INCHES NOMINAL IN |
| Temp Rating | -20.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 5331PL1282818 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| MIL-R-83248/2 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| M83248/2-026 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5331-01-203-6549 is a O-Ring, manufactured by Jednolity Indeks Materialowy - Uniform Material Index, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-203-6549 has 3 cross-referenced part numbers: 5331PL1282818 (Jednolity Indeks Materialowy - Uniform Material Index), MIL-R-83248/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M83248/2-026 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).
There are 2 known substitutes for 5331-01-203-6549: 5331-00-166-8412, 5331-01-221-4208. Verify interchangeability with system specifications before substitution.
Key specifications for 5331PL1282818: Material: RUBBER FLUOROCARBON CLASS FPM; Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL; Center Hole Diameter: 1.228 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN; Outside Diameter: 1.379 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.