The O-Ring, cataloged under National Stock Number 5331-01-266-3949, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Boyd Niagara, Llc. Government technical data includes 1 specification, 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 | 5331-01-266-3949 |
| Primary Part Number | 30059A-3 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Boyd Niagara, Llc |
| Status | ACTIVE |
| Center Hole Diameter | 0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM 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 |
|---|---|
| 30059A-3 PRIMARY | Boyd Niagara, Llc (USA) |
NSN 5331-01-266-3949 is a O-Ring, manufactured by Boyd Niagara, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-266-3949 has 1 manufacturer part number on file: 30059A-3 (Boyd Niagara, Llc).
Key specifications for 30059A-3: Special Features: WIDTH OF PACKING SURFACE MIN. .116 IN./MAX. .120 IN. IN; Center Hole Diameter: 0.918 INCHES MINIMUM AND 0.930 INCHES MAXIMUM IN; End Item Identification: 2350-01-087-1095;2350-01-136-8788;2350-01-061-2445;M1 CBT TANKS. 1 specification is 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.