The O-Ring, cataloged under National Stock Number 5331-00-939-9579, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-939-9579 |
| Primary Part Number | 305000-12 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines |
| Status | ACTIVE |
| Cross-Sectional Height | 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Elongation Percentage | 125 MAXIMUM |
| Center Hole Diameter | 0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| 305000-12 PRIMARY | Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines (USA) |
| Reference | Meaning |
|---|---|
| 99-2975-10 | 5/2 Secondary reference U.S. Government activity |
NSN 5331-00-939-9579 is a O-Ring, manufactured by Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-939-9579 has 1 manufacturer part number on file: 305000-12 (Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines).
Key specifications for 305000-12: Cross-Sectional Height: 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN; Elongation Percentage: 125 MAXIMUM; Center Hole Diameter: 0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN; Material: RUBBER FLUOROCARBON CLASS FPM. 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.