BFN169-4-1
Plate Self-Locking Nut
This page provides complete and verified information for part number BFN169-4-1, NSN 5310-01-050-7475
You’ll find detailed technical specifications, product attributes, condition classification, and real-time stock availability. All data is based on official records and meets industry standards for defense, aerospace, and industrial sourcing. Whether you’re performing a parts audit, validating compliance, or preparing a purchase order, this part listing supports accurate and efficient procurement.
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-01-050-7475
Item Name Code
05280
Assigment Date
11/13/1977 (48 years ago)
right-hand thread direction, 0.254 inches minimum nut counterbore diameter, 3b thread class, prevailing torque all metal design locking feature, dry film lubricant lubrication
Characteristics
Below are the official specifications and performance details for this part, including technical data, material composition, 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
- 0.246 inches maximum
- Plate Thickness
- 0.028 inches minimum and 0.036 inches maximum
- Plate Width
- 0.554 inches nominal
- Removable Nut Manufacturer Code
- 76301
- Nut Counterbore Depth
- 0.070 inches minimum nut
- Nut Mounting Provision
- straight holes
- 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
- Removable Nut Manufacturer Part Number
- stm445c4m1
- Thread Series
- unf
- Features Provided
- floating nut
- Thread Quantity Per Inch
- 28
- Nominal Thread Size
- 0.250 inches
- Material
- iron alloy 660 base
- Material
- iron alloy 660 nut
- Material Document And Classification
- ams5525 assn std single material response or ams5735 assn std single material response mounting
- Surface Treatment
- passivate nut
- Specification/Standard Data
- 76301-st3-442 manufacturers standard
Classification Data
Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.
- Type of Item Identification
- Automatic Data Processing Point
- Demilitarization
- Criticality
- Federal Item Identification Guide
- Precious Metals Indicator
- Pseudo Item Name Code
- Hazardous Material Indicator
- Schedule B Code
- 1 - Full descriptive item identification
- 0 - Represents items with no adp components
- A - 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.
- X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
- A021A0
- A - Item does not contain precious metal.
- 0005280
- N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
- 7318160000
Freight Information
Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.
- Major Organizational Entity
- National Motor Freight Classification Item Number
- National Motor Freight Classification Sub-Item Number
- Uniform Freight Classification Item Number
- National Motor Freight Class Rating
- Water Commodity
- Type of Cargo
- Special Hand
- Air Dimension
- Air Commodity
- National Motor Freight Description
- KZ
- 013540
- X
- 05680
- Q - 70.0
- 713 - Metal hardware
- Z - No special type of cargo code applicable
- 9 - Other or no special handling required (sh)
- A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
- BZ -
- alum nuts
FAQs
Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for BFN169-4-1
What is the FSCG of the NSN 5310-01-050-7475?
The FSCG of the NSN 5310-01-050-7475 is 5310
Does the NSN 5310-01-050-7475 have a Schedule B code assigned?
Yes, the Schedule B code is 7318160000
Does NSN 5310-01-050-7475 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 5310-01-050-7475 contain precious materials?
Item does not contain precious metal.
Does NSN 5310-01-050-7475 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 5310-01-050-7475 was assigned to the Federal Catalog?
It was assigned 48 years ago, on Sun, Nov 13, 1977
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Price & Availability
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Ready to Ship
This item is in stock and ready to ship. Available units may vary in condition (new, surplus, refurbished) and are stored across multiple verified facilities. Request a quote to confirm quantity and lead time.
| New Surplus | 504 |
| New Material | 6,773 |
| Total | 7,277 |
Availability of this item was last updated on:
05/04/2026 06:05 PM EDT.
Stock levels and pricing are subject to change.
