The O-Ring, cataloged under National Stock Number 5331-01-027-8985, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-027-8985 |
| Primary Part Number | N0552 2-142 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Temp Rating | -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.094 INCHES NOMINAL IN |
| Outside Diameter | 2.542 INCHES MINIMUM AND 2.594 INCHES MAXIMUM IN |
| Hardness Rating | 90.0 SHORE DUROMETER A NOMINAL |
| Elongation Percentage | 160 MAXIMUM |
| Center Hole Diameter | 2.342 INCHES MINIMUM AND 2.382 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2-142N552-90 | Parker Hannifin France SAS (FRA) |
| GV39-619-42-90 | Automatic Switch Company Dba Asco (USA) |
| 0J/C.290.001.42 | Cirrus Compresseurs (FRA) |
| N0552 2-142 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 142-477B PRIMARY | Minnesota Rubber Co (USA) |
| Reference | Meaning |
|---|---|
| 2-142-N507-90 | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corp Div O-Ring Division |
| 2-142N552-90 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-01-027-8985 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-027-8985 has 5 manufacturer part numbers on file: 2-142N552-90 (Parker Hannifin France SAS), GV39-619-42-90 (Automatic Switch Company Dba Asco), 0J/C.290.001.42 (Cirrus Compresseurs), N0552 2-142 (Parker-Hannifin Corp Div O-Ring Division), 142-477B (Minnesota Rubber Co).
Key specifications for N0552 2-142: Temp Rating: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.094 INCHES NOMINAL IN; Outside Diameter: 2.542 INCHES MINIMUM AND 2.594 INCHES MAXIMUM IN; Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL. 7 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.