The O-Ring, cataloged under National Stock Number 5331-01-285-4805, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-285-4805 |
| Primary Part Number | 2-028 E1157-60 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Center Hole Diameter | 1.364 INCHES NOMINAL IN |
| 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 |
|---|---|
| SV783900 FIND 170 | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| STSV047AJ028 | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| 2-028 E1157-60 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| STSV047AJ028 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
NSN 5331-01-285-4805 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-285-4805 has 3 manufacturer part numbers on file: SV783900 FIND 170 (Hamilton Sundstrand Corporation Dba Collins Aerospace), STSV047AJ028 (Hamilton Sundstrand Corporation Dba Collins Aerospace), 2-028 E1157-60 (Parker-Hannifin Corp Div O-Ring Division).
Key specifications for 2-028 E1157-60: Center Hole Diameter: 1.364 INCHES NOMINAL IN. 1 specification is 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.