The O-Ring, cataloged under National Stock Number 5331-01-428-7605, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hydac Corp. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-428-7605 |
| Primary Part Number | 117MM X 4MM BUNA O-RING |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hydac Corp |
| Status | ACTIVE |
| Cross-Sectional Height | 4.0 MILLIMETERS NOMINAL MM |
| Center Hole Diameter | 117.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 117MM X 4MM BUNA O-RING PRIMARY | Hydac Corp (USA) |
| Reference | Meaning |
|---|---|
| 117MMX4MM | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-428-7605 is a O-Ring, manufactured by Hydac Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-428-7605 has 1 manufacturer part number on file: 117MM X 4MM BUNA O-RING (Hydac Corp).
Key specifications for 117MM X 4MM BUNA O-RING: Cross-Sectional Height: 4.0 MILLIMETERS NOMINAL MM; Center Hole Diameter: 117.0 MILLIMETERS NOMINAL MM; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 3 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.