The O-Ring, cataloged under National Stock Number 5331-01-225-6343, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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-Hannifin Corp Div O-Ring Division (CAGE 02697); Sae International Dba Sae International (CAGE 0U583) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-225-6343 |
| Primary Part Number | AS568-139 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| 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 |
|---|---|
| 2-139E688-70 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| AS568-139 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| 803-2177934-X7XX-45MOD | 5/2 Secondary reference U.S. Government activity |
| 1545001 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| ARP568-139 MIL- G-22050-1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| AS568-139 | 5/9 Secondary reference U.S. Government activity |
| AS139-SR728A-65 | 5/2 Secondary reference U.S. Government activity |
NSN 5331-01-225-6343 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-225-6343 has 2 manufacturer part numbers on file: 2-139E688-70 (Parker-Hannifin Corp Div O-Ring Division), AS568-139 (Sae International Dba Sae International).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-680-6313. Verify interchangeability with system specifications before substitution.
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.