The O-Ring, cataloged under National Stock Number 5331-00-256-3066, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-256-3066 |
| Primary Part Number | 2532499-110 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.357 INCHES MINIMUM AND 0.367 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 |
|---|---|
| 2532499-110 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 2532499 | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| 2532499-110 PRIMARY | Freudenberg-Nok General Partnership (USA) |
| Reference | Meaning |
|---|---|
| ARP110-9250 | 5/9 Secondary reference Freudenberg-Nok General Partnership |
NSN 5331-00-256-3066 is a O-Ring, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-256-3066 has 3 manufacturer part numbers on file: 2532499-110 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 2532499 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 2532499-110 (Freudenberg-Nok General Partnership).
1 possible match (shared part number, not a government interchangeability claim): 5331-00-450-0022. Verify interchangeability with system specifications before substitution.
Key specifications for 2532499-110: Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Center Hole Diameter: 0.357 INCHES MINIMUM AND 0.367 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.