MS28777 at a glance
Where to buy
Specification
| Item | Value |
|---|---|
| Type | Back-up washer |
| Material | Leather |
| Status | Check the current issue of the standard before design use. |
Part numbers
| Part no. | Size | Inside dia., in | Thickness, in |
|---|---|---|---|
| MS28777-3 | 3/16 | .2960 | .094 |
| MS28777-4 | 1/4 | .3430 | .094 |
| MS28777-5 | 5/16 | .4060 | .094 |
| MS28777-6 | 3/8 | .4680 | .094 |
| MS28777-8 | 1/2 | .6400 | .094 |
Size is the tube O.D. in inches.
Part number
What each code means
| Part | Meaning |
|---|---|
| Format | MS28777-<dash> |
| Example | MS28777-3 — dash 3 |
Notes from the standard
- Thickness is .094 in for every dash number.
Where to buy
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Distributors coming soon.
Sources
- MS28777 — Back-Up Washer, Leather — nominal sizes and part numbers.
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.