The O-Ring, cataloged under National Stock Number 5331-01-056-8498, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Grove U.s. Llc Dba Grove Us Llc. Government technical data includes 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-056-8498 |
| Primary Part Number | 7755427002 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Grove U.s. Llc Dba Grove Us Llc |
| Status | ACTIVE |
| Temp Rating | -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.271 INCHES MINIMUM AND 0.283 INCHES MAXIMUM IN |
| Outside Diameter | 5.230 INCHES MINIMUM AND 5.320 INCHES MAXIMUM IN |
| Hardness Rating | 90.0 SHORE DUROMETER A NOMINAL |
| Elongation Percentage | 160 MAXIMUM |
| Center Hole Diameter | 4.738 INCHES MINIMUM AND 4.768 INCHES MAXIMUM IN |
| Material | RUBBER |
| 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 |
|---|---|
| 2-427N552-90 | Parker Hannifin France Holding (FRA) |
| 7755427002 PRIMARY | Grove U.s. Llc Dba Grove Us Llc (USA) |
| Reference | Meaning |
|---|---|
| N0552 2-427 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| 2-427N522-90 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 2-427N552-90 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-01-056-8498 is a O-Ring, manufactured by Grove U.s. Llc Dba Grove Us Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-056-8498 has 2 manufacturer part numbers on file: 2-427N552-90 (Parker Hannifin France Holding), 7755427002 (Grove U.s. Llc Dba Grove Us Llc).
Key specifications for 7755427002: Temp Rating: -30.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.271 INCHES MINIMUM AND 0.283 INCHES MAXIMUM IN; Outside Diameter: 5.230 INCHES MINIMUM AND 5.320 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.