The O-Ring, cataloged under National Stock Number 5331-01-200-3966, 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 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-200-3966 |
| Primary Part Number | AS568-905 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.072 INCHES NOMINAL IN |
| Outside Diameter | 0.558 INCHES NOMINAL IN |
| Hardness Rating | 90.0 SHORE DUROMETER A NOMINAL |
| Elongation Percentage | 80 MAXIMUM |
| Center Hole Diameter | 0.409 INCHES MINIMUM AND 0.419 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 |
|---|---|
| S-1774 | The Gorman-Rupp Company Div Gorman-Rupp (USA) |
| AS568-905 PRIMARY | Sae International Dba Sae International (USA) |
| 11625-21 | The Gorman-Rupp Company Div Gorman-Rupp (USA) |
| Reference | Meaning |
|---|---|
| AMS 7276 | 5/9 Secondary reference U.S. Government activity |
| AS568-905 | 5/9 Secondary reference U.S. Government activity |
| AS568-905MILP5510 | 5/9 Secondary reference U.S. Government activity |
| AMS 7276 | 5/9 Secondary reference Sae International Dba Sae International |
| SAE-AMS7276 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 5331-01-200-3966 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-200-3966 has 3 manufacturer part numbers on file: S-1774 (The Gorman-Rupp Company Div Gorman-Rupp), AS568-905 (Sae International Dba Sae International), 11625-21 (The Gorman-Rupp Company Div Gorman-Rupp).
2 possible matches (shared part number, not a government interchangeability claim): 5315-01-297-1409, 5331-01-614-1819. Verify interchangeability with system specifications before substitution.
Key specifications for AS568-905: Temp Rating: -65.0 FAHRENHEIT AND 160.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.072 INCHES NOMINAL IN; Outside Diameter: 0.558 INCHES NOMINAL IN; Hardness Rating: 90.0 SHORE DUROMETER A NOMINAL. 7 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.