| Part Number | MS Number | Length | Thread Size |
|---|---|---|---|
| MS51957-3 | MS51957-3 | 1/4 | 2-56 |
| 51957-4 | MS51957-4 | 5/16 | 2-56 |
| 51957-7 | MS51957-7 | 1/2 | 2-56 |
| 51957-11 | MS51957-11 | 7/8 | 2-56 |
| 5195713 | MS51957-13 | 1/4 | 4-40 |
| 5195715 | MS51957-15 | 3/8 | 4-40 |
| 5195717 | MS51957-17 | 1/2 | 4-40 |
| 5195719 | MS51957-19 | 3/4 | 4-40 |
| 5195721 | MS51957-21 | 1 | 4-40 |
| 5195726 | MS51957-26 | 1/4 | 6-32 |
| MS51957-27 | MS51957-27 | 5/16 | 6-32 |
| 51957-29 | MS51957-29 | 7/16 | 6-32 |
| 5195730 | MS51957-30 | 1/2 | 6-32 |
| 5195732 | MS51957-32 | 3/4 | 6-32 |
| 51957-33 | MS51957-33 | 7/8 | 6-32 |
| 5195734 | MS51957-34 | 1 | 6-32 |
| 5195741 | MS51957-41 | 1/4 | 8-32 |
| 5195745 | MS51957-45 | 1/2 | 8-32 |
| 5195747 | MS51957-47 | 3/4 | 8-32 |
| 5195749 | MS51957-49 | 1 | 8-32 |
| 51957-65 | MS51957-65 | 3/4 | 10-24 |
| 51958-62 | MS51958-62 | 7/16 | 10-32 |
| 51958-64 | MS51958-64 | 5/8 | 10-32 |
| 51958-67 | MS51958-67 | 1 | 10-32 |
| 51958-71 | MS51958-71 | 2 | 10-32 |
| MS51957-10 | MS51958-10 | 3/4 | 2-56 |
| 5195725 | MS51957-25 | 3/16 | 6-32 |
| 5195727 | MS51957-27 | 5/16 | 6-32 |
Product Codes | |
|---|---|
| Mfr Part No: | MS51957-25 |
| MIL SPEC: | MS51957-25 |
| ECCN: | EAR99 |
| MIL SPEC: | MS51957-25 |
| SCHEDULE B CODE: | 7408.29.0000 |
- Stock: Out of Stock
- Manufacturer Part #: MS51957-25
AI disclosure: this description was generated with AI assistance from this product's own listing data.
Aircraft Fitment Finder
Returns & refund summary
- 30-day return window — with prior return authorization, unopened in original packaging.
- Restocking fee: 20% on unopened items, 30% on open-box items.
- Refund processing fee: 5.51% applies only to customer-remorse returns and customer-initiated cancellations. If a problem is our fault (our cancellation, unavailability, wrong item, confirmed defect, or shipping damage) your refund is 100% with no fees.
- Return shipping: paid by buyer on customer-remorse returns; we pay return shipping when the problem is our fault.
- Non-returnable categories: installed/used parts, special-order or rebuilt items, programmed items (incl. ELTs), batteries, AOG-priority orders, international orders.
Full terms: Return Policy.
Authenticity & authorization
We source products from manufacturers, authorized distributors, and established aviation suppliers as applicable. We are an independent reseller; we do not claim direct dealer or authorized-representative status for any brand. Documentation, source, and warranty eligibility vary by product and are confirmed on request.
See our full Manufacturer Authorizations page for the current per-brand status.
Need traceability paperwork?
If your installation requires FAA Form 8130-3, manufacturer Certificate of Conformance, or other traceability documentation, please call 1-877-722-8727 or email [email protected] before placing the order so we can confirm what is available for this part.
Shipping
Standard ground, expedited, and AOG shipping options are available at checkout. Full shipping-cost tiers and timelines are published on our Delivery Information page.
