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Specifying Part Numbers
Use the charts below to learn about Smalley’s part naming.
Base Part Number
| Retaining Ring Series | Internal | External |
|---|---|---|
| Light Duty | VH | VS |
| Light Duty* | VHM | VSM |
| Medium Duty | WH | WS |
| Medium Heavy Duty | WHT | WST |
| Heavy Duty | WHM | WSM |
| Snap Ring | FHE | FSE |
| Hoopster | HH/HHU | HS |
| HHM*/HHMU* | HSM* | |
| Aerospace* | EH | ES |
| DIN Series | DNH | DNS |
| Snap Ring* | FH | FS |
| WaveRing | WHW | WSW |
| Tapered Section | RSHE | RSSE |
| Tapered Section* | RSHD | RSSD |
| * Metric parts | ||
| Wave Spring Series | Prefix |
|---|---|
| Standard Single-Turn | SSR |
| Bearing Preload* | SSB |
| Narrow Section Single-Turn | SSR-N |
| Shim | SSRS |
| Crest-to-Crest | C |
| Crest-to-Crest* | CM |
| Crest-to-Crest with Shim Ends | CS |
| Crest-to-Crest with Shim Ends* | CMS |
| WAVO | RW |
| Linear | LS |
| * Metric parts | |
Finish
| Standard Finish | Designation |
|---|---|
| Oil Dip | None (Standard for Carbon Steel) |
| Vapor Degrease & Ultrasonic Clean | None (Standard for Stainless Steel) |
| Special Finish | Designation |
| Passivation | PA |
| Black Oxide | BA |
| Phosphate Coat | PS |
| Cadmium Plate | CD |
| Vibratory Deburr | DV |
|
Burnished (deburred) and Oiled
|
BO |
| Oil & Phosphate per UNI/EN 12476 | OP |
| See the finishes page for more information. | |
Material
| Standard Material | Designation |
|---|---|
| Carbon Steel SAE 1070-1090 | None |
| 302 Stainless Steel (Retaining Rings) | S02 |
| 316 Stainless Steel (Retaining Rings) | S16 |
| 17/7 PH CH900 Stainless Steel (Wave Springs) | S17 |
| Carbon Steel SAE 1060-1074 (Tapered Section Only) | CS |
| Special Material | Designation |
| Inconel X-750 | INX |
| A286 | A86 |
| Beryllium Copper | BEC |
| Phosphor Bronze | PHB |
| Elgiloy | LGY |
| See the material table for more information. | |
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