The O-Ring, cataloged under National Stock Number 5331-00-551-2621, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. 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. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-551-2621 |
| Primary Part Number | 179298 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Eaton Aerospace, Llc Dba Jackson South |
| Status | ACTIVE |
| Cross-Sectional Height | 0.113 INCHES MINIMUM AND 0.116 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.919 INCHES MINIMUM AND 0.924 INCHES MAXIMUM 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 |
|---|---|
| 179298 PRIMARY | Eaton Aerospace, Llc Dba Jackson South (USA) |
NSN 5331-00-551-2621 is a O-Ring, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-551-2621 has 1 manufacturer part number on file: 179298 (Eaton Aerospace, Llc Dba Jackson South).
2 possible matches (shared part number, not a government interchangeability claim): 5340-01-109-6662, 6680-01-511-1755. Verify interchangeability with system specifications before substitution.
Key specifications for 179298: Cross-Sectional Height: 0.113 INCHES MINIMUM AND 0.116 INCHES MAXIMUM IN; Center Hole Diameter: 0.919 INCHES MINIMUM AND 0.924 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC. 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.