The O-Ring, cataloged under National Stock Number 5331-01-190-2748, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parker Hannifin Corporation Div O-Ring Division. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-190-2748 |
| Primary Part Number | E3609 2-015 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker Hannifin Corporation Div O-Ring Division |
| Status | ACTIVE |
| 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 |
|---|---|
| E3609 2-015 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| 820-4551687-2 | 5/1 Secondary reference Naval Sea Systems Command |
| 015-3957 | 5/9 Secondary reference Parker Hannifin Corporation Div O-Ring Division |
| 015-3177 | 5/9 Secondary reference Parker Hannifin Corporation Div O-Ring Division |
| 820-4551687-2 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5331-01-190-2748 is a O-Ring, manufactured by Parker Hannifin Corporation Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-190-2748 has 1 manufacturer part number on file: E3609 2-015 (Parker Hannifin Corporation Div O-Ring Division).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-679-8709. Verify interchangeability with system specifications before substitution.
Key specifications for E3609 2-015: End Item Identification: USED IN NUCLEAR POWER PLANTS. 0 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.