The O-Ring, cataloged under National Stock Number 5331-00-531-6427, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-531-6427 |
| Primary Part Number | 1615588-2 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Cross-Sectional Height | 0.031 INCHES NOMINAL IN |
| Color | BLACK |
| Center Hole Diameter | 0.938 INCHES NOMINAL 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 |
|---|---|
| 1615588-2 PRIMARY | Northrop Grumman Systems Corporation (USA) |
NSN 5331-00-531-6427 is a O-Ring, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-531-6427 has 1 manufacturer part number on file: 1615588-2 (Northrop Grumman Systems Corporation).
Key specifications for 1615588-2: Cross-Sectional Height: 0.031 INCHES NOMINAL IN; Color: BLACK; Center Hole Diameter: 0.938 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC. 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.