The O-Ring, cataloged under National Stock Number 5331-01-580-6532, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-580-6532 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Cross-Sectional Height | 0.070 INCHES NOMINAL IN |
| Center Hole Diameter | 2.989 INCHES NOMINAL IN |
| Material | RUBBER CHLOROPRENE CLASS CR |
| 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 |
|---|---|
| D48372 REV C ITEM 29 | C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc. |
| 109-041RN | 3/9 Design control — primary reference Hunt Valve Company Inc Dba Union Flonetics |
| 109-041RN | C/1 Advisory reference — outside the item-of-supply concept Hunt Valve Company, Inc. |
| D48372 REV C ITEM 29 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
NSN 5331-01-580-6532 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-580-6532: Cross-Sectional Height: 0.070 INCHES NOMINAL IN; Center Hole Diameter: 2.989 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: NEOPRENE BOTTOM PLUG O-RING; End Item Identification: 2 IN. BACK PRESSURE REGULATOR VALVE IN. 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.