The O-Ring, cataloged under National Stock Number 5331-01-727-4742, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Trelleborg Sealing Solutions Us, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Trelleborg Sealing Solutions Us, Inc. (CAGE 09257) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-727-4742 |
| Primary Part Number | S12766-113 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Trelleborg Sealing Solutions Us, Inc. |
| 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 |
|---|---|
| S12766-113 PRIMARY | Trelleborg Sealing Solutions Us, Inc. (USA) |
| Reference | Meaning |
|---|---|
| S12766-113 | 5/9 Secondary reference U.S. Government activity |
| S12766 | D/9 Drawing number reference only Trelleborg Sealing Solutions Us, Inc. |
NSN 5331-01-727-4742 is a O-Ring, manufactured by Trelleborg Sealing Solutions Us, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-727-4742 has 1 manufacturer part number on file: S12766-113 (Trelleborg Sealing Solutions Us, Inc.).
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.