The O-Ring, cataloged under National Stock Number 5331-01-310-5771, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Zodiac of North America, Inc. Dba Zodiac of North America Inc Div Milpro. 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 | 5331-01-310-5771 |
| Primary Part Number | SR11020B7 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Zodiac of North America, Inc. Dba Zodiac of North America Inc Div Milpro |
| Status | ACTIVE |
| Cross-Sectional Height | 0.094 INCHES NOMINAL IN |
| Color | BLACK |
| Center Hole Diameter | 0.351 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 |
|---|---|
| SR11020B7 PRIMARY | Zodiac of North America, Inc. Dba Zodiac of North America Inc Div Milpro (USA) |
NSN 5331-01-310-5771 is a O-Ring, manufactured by Zodiac of North America, Inc. Dba Zodiac of North America Inc Div Milpro, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-310-5771 has 1 manufacturer part number on file: SR11020B7 (Zodiac of North America, Inc. Dba Zodiac of North America Inc Div Milpro).
Key specifications for SR11020B7: Cross-Sectional Height: 0.094 INCHES NOMINAL IN; Color: BLACK; Center Hole Diameter: 0.351 INCHES NOMINAL IN; End Item Identification: ACFT MODEL HH65A FLOATATION GEAR,FORWARD RH. 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.