The O-Ring, cataloged under National Stock Number 5331-01-189-7514, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-189-7514 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Outside Diameter | 3.129 INCHES NOMINAL IN |
| Hardness Rating | 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM |
| Criticality Code Justification | ZZZW |
| Elongation Percentage | 200 MAXIMUM |
| Departure From Cited Document | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Center Hole Diameter | 2.965 INCHES MINIMUM AND 3.013 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| MS29513-041 | 5/9 Secondary reference U.S. Government activity |
| MS29513-041 | 5/9 Secondary reference U.S. Government activity |
| 1F-4179, PC. S-71 | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| MS29513-041 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 1F-5889-S-71 | 5/1 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Div Epd |
| 1F-5889-S-71 | 5/1 Secondary reference Toolex, Inc Dba Toolex Inc |
| 1F-4179,PC.S-71 | 5/1 Secondary reference Toolex, Inc Dba Toolex Inc |
NSN 5331-01-189-7514 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-189-7514: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Outside Diameter: 3.129 INCHES NOMINAL IN; Hardness Rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM; Criticality Code Justification: ZZZW. 8 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.