The O-Ring, cataloged under National Stock Number 5331-01-398-3664, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Danfoss Power Solutions II, Llc. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-398-3664 |
| Primary Part Number | FF9446-228 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Danfoss Power Solutions II, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN |
| Hardness Rating | 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM |
| Specification/standard Data | 89749-568A MANUFACTURERS STANDARD A |
| Center Hole Diameter | 2.214 INCHES MINIMUM AND 2.254 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 |
|---|---|
| FF9446-228 | Danfoss Power Solutions II, Llc (USA) |
| 63864AX | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 25K40208 | 3/2 Design control — primary reference U.S. Government activity |
| 63864AX | 5/9 Secondary reference Oshkosh Corp |
NSN 5331-01-398-3664 is a O-Ring, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-398-3664 has 2 manufacturer part numbers on file: FF9446-228 (Danfoss Power Solutions II, Llc), 63864AX (Oshkosh Defense Llc).
Key specifications for FF9446-228: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Hardness Rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM; Specification/standard Data: 89749-568A MANUFACTURERS STANDARD A; Center Hole Diameter: 2.214 INCHES MINIMUM AND 2.254 INCHES MAXIMUM IN. 5 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.