The O-Ring, cataloged under National Stock Number 5331-00-195-3518, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Parco, Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-195-3518 |
| Primary Part Number | PRP568-425-975-75 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Parco, Llc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Center Hole Diameter | 4.460 INCHES MINIMUM AND 4.490 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 |
|---|---|
| PRP568-425-975-75 | Parco, Llc (USA) |
| 568-425 | Buckeye Rubber & Packing Co (USA) |
| Reference | Meaning |
|---|---|
| 48498 | 3/9 Design control — primary reference Davey Compressor Co Div of Keco Industries Inc |
NSN 5331-00-195-3518 is a O-Ring, manufactured by Parco, Llc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-195-3518 has 2 manufacturer part numbers on file: PRP568-425-975-75 (Parco, Llc), 568-425 (Buckeye Rubber & Packing Co).
1 possible match (shared part number, not a government interchangeability claim): 4310-00-430-0639. Verify interchangeability with system specifications before substitution.
Key specifications for PRP568-425-975-75: Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Center Hole Diameter: 4.460 INCHES MINIMUM AND 4.490 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.