MS51866-14
View detailed technical data, stock status, and sourcing information for: MS51866-14
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part MS51866-14 to receive an up to date pricing and availability quote by email.
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-01-113-9819
Item Name Code
15893
Assigment Date
06/07/1981 (45 years ago)
A fastening device of rigid or semirigid material of various shapes and lengths having two or more apertures with lugs or prongs; threaded holes; or nuts. The apertures, threaded holes or nuts may be of any predetermined spacing.
right-hand thread direction, 0.321 inches minimum and 0.325 inches maximum pilot diameter, 0.298 inches minimum and 0.328 inches maximum pilot length, prevailing torque all metal design or prevailing torque with nonmetallic insert locking feature, 3b thread class
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3b
- Thread Direction
- right-hand
- Locking Feature
- prevailing torque all metal design or prevailing torque with nonmetallic insert
- Pilot Diameter
- 0.321 inches minimum and 0.325 inches maximum
- Pilot Length
- 0.298 inches minimum and 0.328 inches maximum
- Lubrication
- dry film lubricant
- Nut Style
- spline
- Nut Diameter
- 0.423 inches minimum and 0.458 inches maximum
- Nut Height
- 0.455 inches minimum and 0.515 inches maximum
- Temp Rating
- 250.0 fahrenheit maximum
- Thread Series
- unf
- Thread Quantity Per Inch
- 32
- Nominal Thread Size
- 0.190 inches
- Material
- steel comp 1013 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1023 or steel comp 1524 or steel comp 1025 or steel comp 1026 or steel comp 1527 or steel comp 1029 or steel comp 1030 or steel comp 1033 or steel comp 1035 or steel comp 1536 or steel comp 1037 or steel comp 1038 or steel comp 1039 or steel comp 1040 or steel comp 1541 nut
- Surface Treatment
- cadmium and chromate overall except insert
- Surface Treatment Document And Classification
- qq-p-416,ty 2,cl 3 fed spec all treatment responses overall except insert
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5310-00-944-5977 | No Name Available | 09/01/1991 |
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| 22ND20-02 | Spline Self-Locking Nut |
| MS51866-14 | Spline Self-Locking Nut |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5310-01-113-9819?
The FSCG of the NSN 5310-01-113-9819 is 5310
Does the NSN 5310-01-113-9819 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-01-113-9819 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5310-01-113-9819 contain precious materials?
Item does not contain precious metal.
Does NSN 5310-01-113-9819 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5310-01-113-9819 was assigned to the Federal Catalog?
It was assigned 45 years ago, on Sun, Jun 7, 1981
Professional Distribution
Certified to meet the strict requirements of defense, aerospace, and hazardous materials distribution.
- ITAR Registered
- DDTC Registered
- HAZMAT Certified
- AS9120 Quality Standards
- 100% Quality Inspections
You May Also Like
Browse other in-demand NSN parts sourced by professionals in defense, aerospace, and manufacturing sectors. Each component meets strict standards for quality and performance.
6220-01-574-5634
R0085053 Lamp Guard
7643-01-635-1969
USGS 24K5474 Topographic Geospatial Products
7643-01-573-5125
N732 33784 Topographic Geospatial Products
6150-01-181-9973
H16DW677-209 Branched Wiring Harness
5910-00-172-7886
AC3ST39 Ceramic Dielectr Fixed Capacitor
6605-00-071-4948
46000043G1 Assembly Integrator
Pricing
Submit your request below and our team will respond quickly with up-to-date pricing, delivery estimates, and stock information:
In Stock
This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.
| New Material | 1 |
| New Surplus | 82 |
| Total | 83 |
Availability of this item was last updated on:
06/23/2026 07:06 PM EDT.
Stock levels and pricing are subject to change.