The O-Ring, cataloged under National Stock Number 5331-00-526-4775, 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 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-526-4775 |
| Primary Part Number | 511558 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| Status | ACTIVE |
| Cross-Sectional Height | 0.134 INCHES MINIMUM AND 0.144 INCHES MAXIMUM IN |
| Center Hole Diameter | 4.844 INCHES MINIMUM AND 4.874 INCHES MAXIMUM IN |
| Material | RUBBER |
| 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 |
|---|---|
| 511558 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 5331PL0892654 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5331-00-526-4775 is a O-Ring, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-526-4775 has 1 manufacturer part number on file: 511558 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for 511558: Cross-Sectional Height: 0.134 INCHES MINIMUM AND 0.144 INCHES MAXIMUM IN; Center Hole Diameter: 4.844 INCHES MINIMUM AND 4.874 INCHES MAXIMUM IN; Material: RUBBER. 3 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.