The O-Ring, cataloged under National Stock Number 5331-01-591-0601, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Amphenol Corp Div Amphenol Aerospace Operations. 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 | 5331-01-591-0601 |
| Primary Part Number | T3-6511-13D |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Amphenol Corp Div Amphenol Aerospace Operations |
| Status | ACTIVE |
| 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 |
|---|---|
| T3-6511-13D PRIMARY | Amphenol Corp Div Amphenol Aerospace Operations (USA) |
| T3-6511-13D | Aviation Spares and Repairs Ltd (GBR) |
NSN 5331-01-591-0601 is a O-Ring, manufactured by Amphenol Corp Div Amphenol Aerospace Operations, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-591-0601 has 2 manufacturer part numbers on file: T3-6511-13D (Amphenol Corp Div Amphenol Aerospace Operations), T3-6511-13D (Aviation Spares and Repairs Ltd).
Key specifications for T3-6511-13D: Part Name Assigned by Controlling Agency: O-RING. 0 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.