The O-Ring, cataloged under National Stock Number 5331-01-326-8399, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 4 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-326-8399 |
| Primary Part Number | 5820533-006 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Cross-Sectional Height | 0.070 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-R-6855,CL 2 MIL SPEC SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 0.855 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 5820533-006 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5331-01-326-8399 is a O-Ring, manufactured by Naval Sea Systems Command, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-326-8399 has 1 manufacturer part number on file: 5820533-006 (Naval Sea Systems Command).
Key specifications for 5820533-006: Cross-Sectional Height: 0.070 INCHES MINIMUM AND 0.076 INCHES MAXIMUM IN; Material Document and Classification: MIL-R-6855,CL 2 MIL SPEC SINGLE MATERIAL RESPONSE; Special Features: KEYLIKE PROTUSION ON INNER AND OUTER SURFACE OF O-RING; Center Hole Diameter: 0.855 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN. 4 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.