The O-Ring, cataloged under National Stock Number 5331-01-664-1533, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Associates Inc Div Air Techniques International (ati). Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-664-1533 |
| Primary Part Number | 4300236 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hamilton Associates Inc Div Air Techniques International (ati) |
| Status | ACTIVE |
| Cross-Sectional Height | 0.09375 INCHES NOMINAL IN |
| Outside Diameter | 0.75 INCHES NOMINAL IN |
| Center Hole Diameter | 0.5625 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 4300236 PRIMARY | Hamilton Associates Inc Div Air Techniques International (ati) (USA) |
NSN 5331-01-664-1533 is a O-Ring, manufactured by Hamilton Associates Inc Div Air Techniques International (ati), classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-664-1533 has 1 manufacturer part number on file: 4300236 (Hamilton Associates Inc Div Air Techniques International (ati)).
Key specifications for 4300236: Cross-Sectional Height: 0.09375 INCHES NOMINAL IN; Outside Diameter: 0.75 INCHES NOMINAL IN; Center Hole Diameter: 0.5625 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC. 4 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.