The O-Ring, cataloged under National Stock Number 5331-01-306-8403, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Coffin World Water Systems, Llc Dba Coffin World Water Systems, Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-306-8403 |
| Primary Part Number | HCON0136 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Coffin World Water Systems, Llc Dba Coffin World Water Systems, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.275 INCHES NOMINAL IN |
| Center Hole Diameter | 42.450 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 |
|---|---|
| HCON0136 PRIMARY | Coffin World Water Systems, Llc Dba Coffin World Water Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 10004C-1-29 | 5/1 Secondary reference Coffin World Water Systems, Llc Dba Coffin World Water Systems, Llc |
NSN 5331-01-306-8403 is a O-Ring, manufactured by Coffin World Water Systems, Llc Dba Coffin World Water Systems, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-306-8403 has 1 manufacturer part number on file: HCON0136 (Coffin World Water Systems, Llc Dba Coffin World Water Systems, Llc).
Key specifications for HCON0136: Cross-Sectional Height: 0.275 INCHES NOMINAL IN; Center Hole Diameter: 42.450 INCHES NOMINAL IN; End Item Identification: OIL/WATER SEPARATOR,P/N 10000C ONBOARD 270 FOOT COAST GUARD VESSELS FT; Material: RUBBER. 3 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.