The O-Ring Assortment, cataloged under National Stock Number 5331-01-644-2204, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Dante Valve Company. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring Assortment |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Dante Valve Company (CAGE 5P967) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-644-2204 |
| Primary Part Number | D50-0085-SK |
| Item Name | O-Ring Assortment |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Dante Valve Company |
| 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 |
|---|---|
| D50-0085-SK PRIMARY | Dante Valve Company (USA) |
| Reference | Meaning |
|---|---|
| D50-0085 | D/9 Drawing number reference only Dante Valve Company |
NSN 5331-01-644-2204 is a O-Ring Assortment, manufactured by Dante Valve Company, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-644-2204 has 1 manufacturer part number on file: D50-0085-SK (Dante Valve Company).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-644-2326. Verify interchangeability with system specifications before substitution.
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.