The O-Ring, cataloged under National Stock Number 5331-01-323-2325, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Leica Geosystems Ag Dba Leica Geosystems Sa. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Leica Geosystems Ag Dba Leica Geosystems Sa (CAGE S3890) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-323-2325 |
| Primary Part Number | 555 181 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Leica Geosystems Ag Dba Leica Geosystems Sa |
| Status | ACTIVE |
| 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 |
|---|---|
| 555 181 | Leica Geosystems Ag Dba Leica Geosystems Sa (CHE) |
| Reference | Meaning |
|---|---|
| 343354 | 3/9 Design control — primary reference Vectronix Inc. |
| 555181 | 5/9 Secondary reference Vectronix Inc. |
NSN 5331-01-323-2325 is a O-Ring, manufactured by Leica Geosystems Ag Dba Leica Geosystems Sa, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-323-2325 has 1 manufacturer part number on file: 555 181 (Leica Geosystems Ag Dba Leica Geosystems Sa).
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.