The O-Ring, cataloged under National Stock Number 5331-00-186-9214, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Dba Lockheed Martin Government. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5331-00-186-9214 |
| Primary Part Number | 267-18186-1 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Lockheed Martin Corporation Dba Lockheed Martin Government |
| Status | ACTIVE |
| Center Hole Diameter | 0.252 INCHES MINIMUM AND 0.262 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 |
|---|---|
| 267-18186-1 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 267-18186-1 PRIMARY | Lockheed Martin Corporation Dba Lockheed Martin Government (USA) |
| Reference | Meaning |
|---|---|
| 267-18186-1 | 5/9 Secondary reference Yates-American Machine Co Inc |
| 267-18186-1 | 5/9 Secondary reference Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions |
NSN 5331-00-186-9214 is a O-Ring, manufactured by Lockheed Martin Corporation Dba Lockheed Martin Government, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-186-9214 has 2 manufacturer part numbers on file: 267-18186-1 (Parker-Hannifin Corp Div O-Ring Division), 267-18186-1 (Lockheed Martin Corporation Dba Lockheed Martin Government).
Key specifications for 267-18186-1: Center Hole Diameter: 0.252 INCHES MINIMUM AND 0.262 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC. 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.