The O-Ring, cataloged under National Stock Number 5331-01-643-6424, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Emi Conductive Rubber, Llc Dba Emi Conductive Rubber Llc. Government technical data includes 6 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 | 5331-01-643-6424 |
| Primary Part Number | ECR213-ORING002-6740103 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Emi Conductive Rubber, Llc Dba Emi Conductive Rubber Llc |
| Status | ACTIVE |
| Temp Rating | -55.0 FAHRENHEIT AND 150.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.103 INCHES NOMINAL IN |
| Outside Diameter | 0.670 INCHES NOMINAL IN |
| Hardness Rating | 53.0 SHORE DUROMETER A MINIMUM AND 67.0 SHORE DUROMETER A MAXIMUM |
| Center Hole Diameter | 0.400 INCHES NOMINAL IN |
| Material | PLASTIC SILICONE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | V |
| Part Number | Manufacturer |
|---|---|
| ECR213-ORING002-6740103 PRIMARY | Emi Conductive Rubber, Llc Dba Emi Conductive Rubber Llc (USA) |
NSN 5331-01-643-6424 is a O-Ring, manufactured by Emi Conductive Rubber, Llc Dba Emi Conductive Rubber Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-643-6424 has 1 manufacturer part number on file: ECR213-ORING002-6740103 (Emi Conductive Rubber, Llc Dba Emi Conductive Rubber Llc).
Key specifications for ECR213-ORING002-6740103: Temp Rating: -55.0 FAHRENHEIT AND 150.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.103 INCHES NOMINAL IN; Outside Diameter: 0.670 INCHES NOMINAL IN; Hardness Rating: 53.0 SHORE DUROMETER A MINIMUM AND 67.0 SHORE DUROMETER A MAXIMUM. 6 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.