The O-Ring, cataloged under National Stock Number 5331-00-110-3890, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Dresser, Llc. 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 | 5331-00-110-3890 |
| Primary Part Number | 166580A |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Dresser, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 4.210 INCHES MINIMUM AND 4.240 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Material | PLASTIC ACRYLIC |
| 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 |
|---|---|
| 166580A PRIMARY | Dresser, Llc (USA) |
NSN 5331-00-110-3890 is a O-Ring, manufactured by Dresser, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-110-3890 has 1 manufacturer part number on file: 166580A (Dresser, Llc).
Key specifications for 166580A: Cross-Sectional Height: 4.210 INCHES MINIMUM AND 4.240 INCHES MAXIMUM IN; Center Hole Diameter: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Material: PLASTIC ACRYLIC. 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.