The O-Ring, cataloged under National Stock Number 5331-00-435-0989, 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. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5331-00-435-0989 |
| Primary Part Number | ARP568-327MILG23652TY2 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Cross-Sectional Height | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Outside Diameter | 2.145 INCHES NOMINAL IN |
| Elongation Percentage | 125 MAXIMUM |
| Center Hole Diameter | 1.715 INCHES MINIMUM AND 1.735 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| ARP568-327MILG23652TY2 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| M83248/2-327 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| ARP568-327MILG2 3652 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| ARP568-327MILG23652TY2 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5331-00-435-0989 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-435-0989 has 1 manufacturer part number on file: ARP568-327MILG23652TY2 (Sae International Dba Sae International).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-289-3214. Verify interchangeability with system specifications before substitution.
Key specifications for ARP568-327MILG23652TY2: Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Outside Diameter: 2.145 INCHES NOMINAL IN; Elongation Percentage: 125 MAXIMUM; Center Hole Diameter: 1.715 INCHES MINIMUM AND 1.735 INCHES MAXIMUM IN. 5 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.