MS20500 at a glance
Where to buy
Specification
| Item | Value |
|---|---|
| Type | Self-locking nut |
| Material | Corrosion-resistant steel, silver plated |
| Max. temperature | 1200 °F |
| Status | Check the current issue of the standard before design use. |
Dimensions by size
| Dimension, in | 10-32 | 1/4-28 | 5/16-24 | 3/8-24 |
|---|---|---|---|---|
| C — C (column headed .020) | .210 | .273 | .336 | .398 |
| H max — Height, max | .250 | .328 | .360 | .469 |
| H min — Height, min | .202 | .280 | .312 | .421 |
| N — N, min | .413 | .488 | .557 | .628 |
| W max — Across flats, max | .376 | .439 | .502 | .564 |
| W min — Across flats, min | .367 | .430 | .492 | .553 |
Dimensions in inches, as tabulated for the part. Blank cells (—): not stated in the documents we hold; take them from the standard.
Part numbers
| Part no. | Size |
|---|---|
| MS20500-1032 | 10-32 |
| MS20500-428 | 1/4-28 |
| MS20500-524 | 5/16-24 |
| MS20500-624 | 3/8-24 |
Part numbers as listed for the part; the standard governs and may list others.
Part number
What each code means
| Part | Meaning |
|---|---|
| Example | MS20500-428 — 1/4-28 heat-resistant self-locking nut, 1200 °F |
Notes from the standard
- Thread to MIL-S-8879.
- Part numbers are written with a hyphen before the dash number: MS20500-428.
- Part number format as commonly written; check the standard for the exact format.
- Approved data governs. Use the nut the SRM, drawing or IPC calls for.
Where to buy
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Distributors coming soon.
Sources
- MS20500 — Nut, Self-Locking, Heat and Corrosion Resistant, 1200 °F, Silver Plated — 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.