The O-Ring, cataloged under National Stock Number 5331-01-123-5664, 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 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Parker Brownsville Servicio S.a. De C.v. (CAGE SE397); Parker-Hannifin Corp Div O-Ring Division (CAGE 02697) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-123-5664 |
| Primary Part Number | 1298023-2 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parker-Hannifin Corp Div O-Ring Division |
| Status | ACTIVE |
| Cross-Sectional Height | 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Center Hole Diameter | 1.104 INCHES MINIMUM AND 1.124 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 |
|---|---|
| 1298023-2 | Parker Brownsville Servicio S.a. De C.v. (MEX) |
| 1298023-2 PRIMARY | Parker-Hannifin Corp Div O-Ring Division (USA) |
| Reference | Meaning |
|---|---|
| 1298023-2 | 7/9 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 2-025 E540-80 1W2B | 5/1 Secondary reference Parker Brownsville Servicio S.a. De C.v. |
| 1298023-2 | 7/2 Vendor item drawing reference Naval Sea Systems Command |
| 1298023-2 | 5/9 Secondary reference Apple Rubber Products, Inc. Dba Apple Rubber Products Inc |
| 28.30X1.78-41B8 | 5/9 Secondary reference Stacem |
NSN 5331-01-123-5664 is a O-Ring, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-123-5664 has 2 manufacturer part numbers on file: 1298023-2 (Parker Brownsville Servicio S.a. De C.v.), 1298023-2 (Parker-Hannifin Corp Div O-Ring Division).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-271-5958. Verify interchangeability with system specifications before substitution.
Key specifications for 1298023-2: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Center Hole Diameter: 1.104 INCHES MINIMUM AND 1.124 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.