The O-Ring, cataloged under National Stock Number 5331-01-069-4857, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-069-4857 |
| Primary Part Number | 6640200 ITEM 26 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Cross-Sectional Height | 0.090 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.255 INCHES MINIMUM AND 1.265 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 |
|---|---|
| 6640200 ITEM 26 PRIMARY | Naval Sea Systems Command (USA) |
| 1817404 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1817404 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-069-4857 is a O-Ring, manufactured by Naval Sea Systems Command, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-069-4857 has 2 manufacturer part numbers on file: 6640200 ITEM 26 (Naval Sea Systems Command), 1817404 (Northrop Grumman Systems Corporation).
Key specifications for 6640200 ITEM 26: Cross-Sectional Height: 0.090 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN; Center Hole Diameter: 1.255 INCHES MINIMUM AND 1.265 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.