The O-Ring, cataloged under National Stock Number 5331-01-475-2746, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Caro, Inc. Dba South Bend Lathe. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-475-2746 |
| Primary Part Number | PSB20-12-1416 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Caro, Inc. Dba South Bend Lathe |
| Status | ACTIVE |
| Cross-Sectional Height | 4.0 MILLIMETERS NOMINAL MM |
| Center Hole Diameter | 55.0 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 20-12-1416 | Caro, Inc. Dba South Bend Lathe (USA) |
| PSB20-12-1416 PRIMARY | Caro, Inc. Dba South Bend Lathe (USA) |
NSN 5331-01-475-2746 is a O-Ring, manufactured by Caro, Inc. Dba South Bend Lathe, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-475-2746 has 2 manufacturer part numbers on file: 20-12-1416 (Caro, Inc. Dba South Bend Lathe), PSB20-12-1416 (Caro, Inc. Dba South Bend Lathe).
Key specifications for PSB20-12-1416: Cross-Sectional Height: 4.0 MILLIMETERS NOMINAL MM; Center Hole Diameter: 55.0 MILLIMETERS NOMINAL MM; Material: RUBBER SYNTHETIC. 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.