The O-Ring, cataloged under National Stock Number 5331-00-618-2526, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-00-618-2526 |
| Primary Part Number | 7M75-014 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Cross-Sectional Height | 0.066 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.489 INCHES NOMINAL 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 |
|---|---|
| 7M75-014 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 1055-50-014 | 5/9 Secondary reference Parco, Llc |
NSN 5331-00-618-2526 is a O-Ring, manufactured by The Boeing Company Div Defense, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-618-2526 has 1 manufacturer part number on file: 7M75-014 (The Boeing Company Div Defense).
Key specifications for 7M75-014: Cross-Sectional Height: 0.066 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN; Center Hole Diameter: 0.489 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC. 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.