The O-Ring, cataloged under National Stock Number 5331-01-185-8700, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5331-01-185-8700 |
| Primary Part Number | A6689.906.303 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| Status | ACTIVE |
| Cross-Sectional Height | 1.900 INCHES MINIMUM AND 2.060 INCHES MAXIMUM IN |
| Center Hole Diameter | 11.850 INCHES MINIMUM AND 12.110 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| A6689.906.303 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 06689906303 | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| 9601 PIECE 4 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| A6689.906.303 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| A6481.906.144 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| A6689-906-303 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-185-8700 is a O-Ring, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-185-8700 has 2 manufacturer part numbers on file: A6689.906.303 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 06689906303 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-215-6748. Verify interchangeability with system specifications before substitution.
Key specifications for A6689.906.303: Cross-Sectional Height: 1.900 INCHES MINIMUM AND 2.060 INCHES MAXIMUM IN; Center Hole Diameter: 11.850 INCHES MINIMUM AND 12.110 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 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.