The O-Ring, cataloged under National Stock Number 5331-01-089-0098, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-089-0098 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Cross-Sectional Height | 0.103 INCHES NOMINAL IN |
| Outside Diameter | 4.193 INCHES NOMINAL IN |
| Hardness Rating | 70.0 SHORE DUROMETER A NOMINAL |
| Elongation Percentage | 125 MAXIMUM |
| Center Hole Diameter | 3.959 INCHES MINIMUM AND 4.015 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROSILICONE CLASS FQ |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Reference | Meaning |
|---|---|
| M25988/1-155 | 5/1 Secondary reference Dbr Industries, Inc. Dba Dbr Industries Inc |
| M25988/1-155 | 5/1 Secondary reference Blade Industrial Products Inc |
| M25988/1-155 | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-25988/1 | 4/1 Identification reference U.S. Government activity |
| 2-155 L677-70 | 5/9 Secondary reference Parker Hannifin Gmbh O-Ring Division |
| 2-155L1120-70 | 5/9 Secondary reference Lori Corp |
| 2-155L677-7 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-01-089-0098 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-089-0098: Cross-Sectional Height: 0.103 INCHES NOMINAL IN; Outside Diameter: 4.193 INCHES NOMINAL IN; Hardness Rating: 70.0 SHORE DUROMETER A NOMINAL; Elongation Percentage: 125 MAXIMUM. 6 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.