The O-Ring, cataloged under National Stock Number 5331-01-643-3513, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Honeywell International Inc.. Government technical data includes 2 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 | 5331-01-643-3513 |
| Primary Part Number | 57239-681-2 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Honeywell International Inc. |
| Status | ACTIVE |
| Center Hole Diameter | 5.313 INCHES NOMINAL IN |
| Material | RUBBER |
| 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 |
|---|---|
| 57239-681-2 PRIMARY | Honeywell International Inc. (USA) |
NSN 5331-01-643-3513 is a O-Ring, manufactured by Honeywell International Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-643-3513 has 1 manufacturer part number on file: 57239-681-2 (Honeywell International Inc.).
Key specifications for 57239-681-2: Center Hole Diameter: 5.313 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: PACKING (PREFORMED O-RING); End Item Identification: F108-CF-100; Material: RUBBER. 2 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.