The O-Ring, cataloged under National Stock Number 5331-01-406-1202, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-406-1202 |
| Primary Part Number | 729352-7 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Cross-Sectional Height | 0.069 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN |
| Hardness Rating | 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM |
| Material Document and Classification | MIL-R-25988/1 TY1,CL-1 MIL SPEC SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 0.183 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROSILICONE CLASS FQ |
| 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 |
|---|---|
| 5-581L1120-70 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| 729352-7 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 5-581L677-70 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-01-406-1202 is a O-Ring, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-406-1202 has 2 manufacturer part numbers on file: 5-581L1120-70 (Parker-Hannifin Corp Div O-Ring Division), 729352-7 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for 729352-7: Cross-Sectional Height: 0.069 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN; Hardness Rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: MIL-R-25988/1 TY1,CL-1 MIL SPEC SINGLE MATERIAL RESPONSE; Center Hole Diameter: 0.183 INCHES MINIMUM AND 0.195 INCHES MAXIMUM 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.