The O-Ring, cataloged under National Stock Number 5331-01-045-2953, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-045-2953 |
| Primary Part Number | AS568-270 AMS3209 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Temp Rating | -40.0 FAHRENHEIT AND 212.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 3.400 MILLIMETERS MINIMUM AND 3.660 MILLIMETERS MAXIMUM MM |
| Outside Diameter | 9.262 INCHES NOMINAL IN |
| Center Hole Diameter | 226.180 MILLIMETERS MINIMUM AND 229.220 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| 1163479-18 | Aerojet Rocketdyne Inc (USA) |
| AS568-270 AMS3209 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE-AMS7276 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS568-270 AMS3209 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5331-01-045-2953 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-045-2953 has 2 manufacturer part numbers on file: 1163479-18 (Aerojet Rocketdyne Inc), AS568-270 AMS3209 (Sae International Dba Sae International).
Key specifications for AS568-270 AMS3209: Temp Rating: -40.0 FAHRENHEIT AND 212.0 FAHRENHEIT DEGF; Cross-Sectional Height: 3.400 MILLIMETERS MINIMUM AND 3.660 MILLIMETERS MAXIMUM MM; Outside Diameter: 9.262 INCHES NOMINAL IN; Center Hole Diameter: 226.180 MILLIMETERS MINIMUM AND 229.220 MILLIMETERS MAXIMUM MM. 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.