The O-Ring, cataloged under National Stock Number 5331-01-183-5656, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hunt Valve Company, Inc.. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Hunt Valve Company, Inc. (CAGE 11859) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-183-5656 |
| Primary Part Number | 109-904RT |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hunt Valve Company, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| D50085-1 ITEM 34 | Hunt Valve Company, Inc. (USA) |
| 109-904RT PRIMARY | Hunt Valve Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 109-904RT | 3/9 Design control — primary reference Hunt Valve Company Inc Dba Union Flonetics |
| D50085-1 ITEM 34 | 5/9 Secondary reference Hunt Valve Company Inc Dba Union Flonetics |
NSN 5331-01-183-5656 is a O-Ring, manufactured by Hunt Valve Company, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-183-5656 has 2 manufacturer part numbers on file: D50085-1 ITEM 34 (Hunt Valve Company, Inc.), 109-904RT (Hunt Valve Company, 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.