The O-Ring, cataloged under National Stock Number 5331-01-523-2231, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Haltec Corp. Government technical data includes 3 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 | 5331-01-523-2231 |
| Primary Part Number | OR-20-JM |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Haltec Corp |
| Status | ACTIVE |
| Temp Rating | -40.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.260 INCHES NOMINAL IN |
| Center Hole Diameter | 20.000 INCHES NOMINAL IN |
| 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 |
|---|---|
| OR-20-JM PRIMARY | Haltec Corp (USA) |
NSN 5331-01-523-2231 is a O-Ring, manufactured by Haltec Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-523-2231 has 1 manufacturer part number on file: OR-20-JM (Haltec Corp).
Key specifications for OR-20-JM: Temp Rating: -40.0 FAHRENHEIT AND 180.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.260 INCHES NOMINAL IN; Special Features: MATERIAL EXTRUDED AND SPLICED; PACKAGED O-RINGS 2 PER POLY BAG AND 24 PER CASE; SOLD IN CASE LOTS; Center Hole Diameter: 20.000 INCHES NOMINAL 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.