The O-Ring, cataloged under National Stock Number 5331-00-118-2981, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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 | 5331-00-118-2981 |
| Primary Part Number | 5S1105 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Cross-Sectional Height | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.965 INCHES MINIMUM AND 1.985 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5331-00-118-2981 is a O-Ring, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-00-118-2981 has 2 cross-referenced part numbers: SS3803-32 (Triumph Thermal Systems - Maryland, Inc.), 5S1105 (Caterpillar Inc Div Caterpillar Defense).
There is 1 known substitute for 5331-00-118-2981: 5990-00-538-0705. Verify interchangeability with system specifications before substitution.
Key specifications for 5S1105: Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Center Hole Diameter: 1.965 INCHES MINIMUM AND 1.985 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC. 3 total characteristics are documented in the Federal Logistics Information System.