The O-Ring, cataloged under National Stock Number 5331-01-039-2521, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Society of Automotive Engineers Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-039-2521 |
| Primary Part Number | AS568-111 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-Ring |
| Manufacturer | Society of Automotive Engineers Inc |
| Status | ACTIVE |
| Material Document and Classification | MIL-R-25897,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 0.419 INCHES MINIMUM AND 0.429 INCHES MAXIMUM IN |
| Elongation Percentage | 125 MAXIMUM |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Outside Diameter | 0.630 INCHES NOMINAL IN |
| Reference Number Differentiating Characteristics | CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D |
| Hardness Rating | 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM |
| Criticality Code Justification | ZZZY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AS568-111 | Society of Automotive Engineers Inc (USA) |
| AS568-111-AMS7276 | Society of Automotive Engineers Inc (USA) |
| L180-111CP | Naval Inventory Control Point Mechanicsburg (USA) |
| ARP568-111MILR25897TY1CL1 | Sae International Dba Sae International (USA) |
| AS568-111 | Sae International Dba Sae International (USA) |
| ARP568-111MILR25897TY1C1CP | Naval Inventory Control Point Mechanicsburg (USA) |
| AS568-111-AMS7276 | Sae International Dba Sae International (USA) |
| ARP568-111MILR25897TY1CL1 | Society of Automotive Engineers Inc (USA) |
| M83485/1-111 | Zf Industrieantriebe Witten Gmbh (DEU) |
| L180-111 | Vacco Industries (USA) |
NSN 5331-01-039-2521 is a O-Ring, manufactured by Society of Automotive Engineers Inc, classified under FSC 5331 (O-Ring). Status: active.
NSN 5331-01-039-2521 has 10 cross-referenced part numbers: AS568-111 (Society of Automotive Engineers Inc), AS568-111-AMS7276 (Society of Automotive Engineers Inc), L180-111CP (Naval Inventory Control Point Mechanicsburg), ARP568-111MILR25897TY1CL1 (Sae International Dba Sae International), AS568-111 (Sae International Dba Sae International) and 5 more.
There are 6 known substitutes for 5331-01-039-2521: 5331-00-166-1059, 5331-00-559-2632, 5331-00-907-0984 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for AS568-111: Material Document and Classification: MIL-R-25897,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE; Center Hole Diameter: 0.419 INCHES MINIMUM AND 0.429 INCHES MAXIMUM IN; Elongation Percentage: 125 MAXIMUM; Material: RUBBER FLUOROCARBON CLASS FPM. 9 total characteristics are documented in the Federal Logistics Information System.