The O-Ring, cataloged under National Stock Number 5331-01-178-7384, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin Corporation Div O-Ring Division. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-178-7384 |
| Primary Part Number | 110-11648 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker Hannifin Corporation Div O-Ring Division |
| Status | ACTIVE |
| Temp Rating | -90.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Outside Diameter | 0.557 INCHES MINIMUM AND 0.579 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM |
| Elongation Percentage | 125 MAXIMUM |
| Color | BLUE |
| Center Hole Diameter | 0.357 INCHES MINIMUM AND 0.367 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 |
| Part Number | Manufacturer |
|---|---|
| 110-11648 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| PRP110-11648 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| 2-110 L806-80 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-110 L806-80 | 5/9 Secondary reference Parker Hannifin Gmbh O-Ring Division |
| M25988/4-110 | 2/2 Government specification standardization U.S. Government activity |
| 2-110 L1007-80 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| L1218 2-110 | 5/1 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| MIL-DTL-25988/4 | 4/1 Identification reference U.S. Government activity |
| MIL-R-25988 | 5/9 Secondary reference U.S. Government activity |
| 2-110 L1218-80 | 5/1 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| A-110TH1058 | 5/2 Secondary reference U.S. Government activity |
NSN 5331-01-178-7384 is a O-Ring, manufactured by Parker Hannifin Corporation Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-178-7384 has 2 manufacturer part numbers on file: 110-11648 (Parker Hannifin Corporation Div O-Ring Division), PRP110-11648 (Parker Hannifin Corporation Div O-Ring Division).
Key specifications for 110-11648: Temp Rating: -90.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Outside Diameter: 0.557 INCHES MINIMUM AND 0.579 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM. 8 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.