The Ring,retaining, cataloged under National Stock Number 5325-01-618-9817, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Joint Oil Analysis Program Dba Department of Defense. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-618-9817 |
| Primary Part Number | 18C2204-1 |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Joint Oil Analysis Program Dba Department of Defense |
| Status | ACTIVE |
| Supplementary Features | ITEM:RETAINER ASSEMBLY,HELICOPTER STRUT. ASSEMBLY CONSISTS OF RETAINER PART NUMBER 18C2204-2 AND PIN,PART NUMBER NAS607-2-7 QUANTITY 4, CAGE CODE 08205,FINISH:SULFURIC ACID ANODIZE PER LES CP-01-2-A-434 |
| Material Document and Classification | TEMPER T6, ALUMINUM ASSOCIATION ASSN STD SINGLE MATERIAL RESPONSE |
| Outside Diameter | 2.50 INCHES NOMINAL IN |
| Major Thickness | 0.250 INCHES NOMINAL IN |
| Inside Diameter | 1.318 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY 6061 |
| 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 |
|---|---|
| 18C2204-1 | Joint Oil Analysis Program Dba Department of Defense (USA) |
| Reference | Meaning |
|---|---|
| 18C2204-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-01-618-9817 is a Ring,retaining, manufactured by Joint Oil Analysis Program Dba Department of Defense, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-618-9817 has 1 manufacturer part number on file: 18C2204-1 (Joint Oil Analysis Program Dba Department of Defense).
Key specifications for 18C2204-1: Supplementary Features: ITEM:RETAINER ASSEMBLY,HELICOPTER STRUT. ASSEMBLY CONSISTS OF RETAINER PART NUMBER 18C2204-2 AND PIN,PART NUMBER NAS607-2-7 QUANTITY 4, CAGE CODE 08205,FINISH:SULFURIC ACID ANODIZE PER LES CP-01-2-A-434; Material Document and Classification: TEMPER T6, ALUMINUM ASSOCIATION ASSN STD SINGLE MATERIAL RESPONSE; Outside Diameter: 2.50 INCHES NOMINAL IN; Major Thickness: 0.250 INCHES NOMINAL IN. 7 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.