The O-Ring, cataloged under National Stock Number 5331-01-610-2108, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-610-2108 |
| Primary Part Number | AS3581-918 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Cross-Sectional Height | 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Hardness Rating | 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM |
| Material Document and Classification | AMS7259 ASSN STD SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 1.125 INCHES NOMINAL IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| D50-0020 REV ITEM 28 | Dante Valve Company (USA) |
| AS3581-918 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| D50-0020 REV ITEM 28 | 5/9 Secondary reference Danco Valve Company |
| AS3581-918 | 3/9 Design control — primary reference U.S. Government activity |
| SAE-AS3581 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 5331-01-610-2108 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-610-2108 has 2 manufacturer part numbers on file: D50-0020 REV ITEM 28 (Dante Valve Company), AS3581-918 (Sae International Dba Sae International).
Key specifications for AS3581-918: Cross-Sectional Height: 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN; Hardness Rating: 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: AMS7259 ASSN STD SINGLE MATERIAL RESPONSE; Center Hole Diameter: 1.125 INCHES NOMINAL IN. 5 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.