The O-Ring, cataloged under National Stock Number 5331-00-183-0875, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Thales Security Systems Uk Limited. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-183-0875 |
| Primary Part Number | 858-55001 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Thales Security Systems Uk Limited |
| Status | ACTIVE |
| Cross-Sectional Height | 0.089 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.330 INCHES NOMINAL IN |
| 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 |
|---|---|
| 9377735 | Thales Security Systems Uk Limited (GBR) |
| 910-122 | Thales Security Systems Uk Limited (GBR) |
| 858-55001 PRIMARY | Thales Security Systems Uk Limited (GBR) |
| Reference | Meaning |
|---|---|
| 910-122 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 9377735 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 9379657 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 858-55001 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-00-183-0875 is a O-Ring, manufactured by Thales Security Systems Uk Limited, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-183-0875 has 3 manufacturer part numbers on file: 9377735 (Thales Security Systems Uk Limited), 910-122 (Thales Security Systems Uk Limited), 858-55001 (Thales Security Systems Uk Limited).
Key specifications for 858-55001: Cross-Sectional Height: 0.089 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN; Center Hole Diameter: 1.330 INCHES NOMINAL IN. 2 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.