5310-01-111-1305
Find complete technical information, availability, and procurement data for: 5310-01-111-1305
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Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-01-111-1305
Item Name Code
05280
Assigment Date
04/11/1981 (45 years ago)
A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.
0.254 inches minimum nut counterbore diameter, 3b thread class, dry film lubricant lubrication, right-hand thread direction, prevailing torque all metal design locking feature
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
- Counterbore Diameter
- 0.254 inches minimum nut
- Lubrication
- dry film lubricant
- Mounting Hole Diameter
- 0.098 inches minimum and 0.103 inches maximum
- Nut Style
- plate
- Nut Length
- 1.306 inches maximum
- Nut Height
- 0.281 inches maximum
- Plate Thickness
- 0.032 inches maximum
- Plate Width
- 0.350 inches minimum and 0.531 inches maximum
- Nut Counterbore Depth
- 0.062 inches minimum nut
- Nut Mounting Provision
- countersunk holes
- Mounting Provision Location
- opposite nut projection side
- Mounting Hole Arrangement Style
- 2 holes
- Distance From Aperture Center To Mounting Hole Center
- 0.495 inches minimum and 0.505 inches maximum
- Center To Center Distance Between Mounting Holes Along Length
- 0.310 inches minimum and 0.314 inches maximum
- Temp Rating
- 450.0 fahrenheit maximum
- Thread Series
- unjf
- Features Provided
- floating nut
- Thread Quantity Per Inch
- 28
- Hardness Rating
- 49.0 rockwell c maximum
- Nominal Thread Size
- 0.250 inches
- Mounting Hole Countersink Angle
- 98.0 degrees minimum and 102.0 degrees maximum
- Material
- iron alloy 660 overall
- Material Document And Classification
- ams 5525 assn std single material response or ams 5732 assn std single material response or ams 5737 assn std single material response overall
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 |
|---|---|
| MS21062L4K | Plate Self-Locking Nut |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5310-01-111-1305?
The FSCG of the NSN 5310-01-111-1305 is 5310
Does the NSN 5310-01-111-1305 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-01-111-1305 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 5310-01-111-1305 contain precious materials?
Item does not contain precious metal.
Does NSN 5310-01-111-1305 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 5310-01-111-1305 was assigned to the Federal Catalog?
It was assigned 45 years ago, on Sat, Apr 11, 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
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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 | 16 |
| New Material | 1 |
| Total | 17 |
Availability of this item was last updated on:
03/30/2026 11:03 AM EDT.
Stock levels and pricing are subject to change.