The O-Ring, cataloged under National Stock Number 5331-01-524-0288, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-524-0288 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Cross-Sectional Height | 0.188 INCHES NOMINAL IN |
| Material Document and Classification | SAE-AMS 7276G ASSN STD SINGLE MATERIAL RESPONSE AND SAE-AMS 7259D ASSN STD SINGLE MATERIAL RESPONSE AND SAE-AS 3216A ASSN STD SINGLE MATERIAL RESPONSE AND SAE-AS3218A ASSN STD SINGLE MATERIAL RESPONSE A |
| Center Hole Diameter | 4.333 INCHES NOMINAL 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 |
| Reference | Meaning |
|---|---|
| 237384-0001 ITEM 63 | 5/2 Secondary reference U.S. Government activity |
| 4400571-3460 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5331-01-524-0288 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-524-0288: Cross-Sectional Height: 0.188 INCHES NOMINAL IN; Material Document and Classification: SAE-AMS 7276G ASSN STD SINGLE MATERIAL RESPONSE AND SAE-AMS 7259D ASSN STD SINGLE MATERIAL RESPONSE AND SAE-AS 3216A ASSN STD SINGLE MATERIAL RESPONSE AND SAE-AS3218A ASSN STD SINGLE MATERIAL RESPONSE A; Special Features: OD IS 4.500 IN IN; Center Hole Diameter: 4.333 INCHES NOMINAL IN. 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.