The Ring,retaining, cataloged under National Stock Number 5325-01-435-8579, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5325-01-435-8579 |
| Primary Part Number | RRT175CD |
| Item Name | Ring,retaining |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Usage Design | INTERNAL |
| Strength Rating | ERR-060 |
| Cross-Sectional Shape Style | CHAMFERED OUTSIDE CORNERS |
| Outside Diameter | 1.840 INCHES MINIMUM AND 1.850 INCHES MAXIMUM IN |
| Major Thickness | 0.120 INCHES NOMINAL IN |
| Inside Diameter | 1.750 INCHES NOMINAL IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Ring Style | SPIRAL |
| Surface Treatment | CADMIUM AND DICHROMATE |
| Material | STEEL |
| 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 |
|---|---|
| RRT175CD PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| RRT175CD | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-01-435-8579 is a Ring,retaining, manufactured by The Boeing Company, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-435-8579 has 1 manufacturer part number on file: RRT175CD (The Boeing Company).
Key specifications for RRT175CD: Usage Design: INTERNAL; Strength Rating: ERR-060; Cross-Sectional Shape Style: CHAMFERED OUTSIDE CORNERS; Outside Diameter: 1.840 INCHES MINIMUM AND 1.850 INCHES MAXIMUM IN. 10 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.