o-rings › packing retainers
MS28774-221
Back-Up Retainer Ring
Description
Back-Up Retainer Ring
Specifications
| Center Hole Diameter | 1.458 inches minimum and 1.460 inches maximum |
|---|---|
| Cross Sectional Shape | Square/rectangular |
| Cross-Sectional Height | 0.045 inches minimum and 0.052 inches maximum |
| Industry Standards/Certification | MS28774 |
| Inside Diameter | 1.459 in |
| Joint Type | Scarf-peripheral retainer |
| Material | Plastic |
| Material Specification | Sae-as8791 national spec single material response |
| NIIN | 00-684-2164 |
| NSN | 5330-00-684-2164 |
| Peripheral Diameter | 1.695 inches minimum and 1.699 inches maximum |
| Thickness | 0.045 in |
| Weight | .005 lb |
| Width | 0.118 in |
Cross-reference
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- MS28774-127 MS 1.46 in · Plastic
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Catalog data updated 2026-07-05. Report a data error