18D07
View detailed technical data, stock status, and sourcing information for: 18D07
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Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-088-0552
Item Name Code
05277
Assigment Date
01/01/1963 (63 years ago)
A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes:nut (1), self-locking, cap.
soluble lubricant lubrication, prevailing torque with nonmetallic insert locking feature, hexagon nut style, right-hand thread direction, 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 with nonmetallic insert
- Lubrication
- soluble lubricant
- Nut Style
- hexagon
- Nut Height
- 0.435 inches minimum and 0.469 inches maximum
- Width Across Flats
- 0.679 inches minimum and 0.690 inches maximum
- Temp Rating
- 250.0 fahrenheit nominal
- Thread Series
- unjf
- Thread Quantity Per Inch
- 20
- Nominal Thread Size
- 0.438 inches
- Countersink Angle
- 88.0 degrees nominal nut
- Criticality Code Justification
- feat
- Bearing Surface Type
- chamfered or washer faced
- Bearing Surface Finish
- 125.0 microinches
- Special Features
- weapon system essential
- Material
- steel comp 1006 or steel comp 1008 or steel comp 1009 or steel comp 1010 or steel comp 1015 or steel comp 1018 or steel comp 1035 or steel comp 11l37 or steel comp 1213 or steel comp 12l14 nut
- Surface Treatment
- cadmium and chromate nut
- Surface Treatment Document And Classification
- qq-p-416,ty 2,cl 3 fed spec single treatment response overall except insert
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5310-00-274-8923 | No Name Available | 10/01/1982 |
| 5310-00-721-3563 | No Name Available | 06/01/1996 |
| 5310-01-193-7510 | No Name Available | 02/01/1991 |
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 |
|---|---|
| 18D07 | Hexagon Self-Locking Nut |
| 251-013 | Hexagon Self-Locking Nut |
| 50NE070 | Hexagon Self-Locking Nut |
| 5310PL0145347 | Hexagon Self-Locking Nut |
| 907784 | Hexagon Self-Locking Nut |
| 938.07.17.608 | Hexagon Self-Locking Nut |
| AN365-720 | Hexagon Self-Locking Nut |
| F52NE-070U | Hexagon Self-Locking Nut |
| F52NE070U | Hexagon Self-Locking Nut |
| MS21044N7 | Hexagon Self-Locking Nut |
| NAS1021N7 | Hexagon Self-Locking Nut |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5310-00-088-0552?
The FSCG of the NSN 5310-00-088-0552 is 5310
Does the NSN 5310-00-088-0552 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-00-088-0552 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 5310-00-088-0552 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-088-0552 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 5310-00-088-0552 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963
Professional Distribution
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- ITAR Registered
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- AS9120 Quality Standards
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Pricing
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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 Surplus | 957 |
| New Material | 6,503 |
| Serviceable | 11 |
| Overhauled | 1 |
| Total | 7,472 |
Availability of this item was last updated on:
02/09/2026 11:02 AM EST.
Stock levels and pricing are subject to change.