NSN 5305-01-217-2925
Panel Assembly Fastener
Between 0.848 inches and 0.878 inches fastener length, flat countersunk head style, between 0.455 inches and 0.510 inches head diameter, shoulder diameter: 0.2641 inches and 0.2651 inches first shoulder.
Manufacturer part number BACB30LU4-7X for national stock number 5305012172925.
Datasheet
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Product description
Shoulder Screw NSN 5305-01-217-2925.
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MPN or Model
BACB30LU4-7X
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Schedule B
7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment) -
NMF (National Motor Freight)
093486 - Bolts, Nuts Or Screws, NOI (sub 3) -
Unit Weight (Est.)
0.1 lb -
Thread Class
3a -
Thread Direction
Right-hand -
Thread Length
Between 0.400 inches and 0.450 inches -
Fastener Length
Between 0.848 inches and 0.878 inches -
Head Style
Flat countersunk -
Head Diameter
Between 0.455 inches and 0.510 inches -
Shoulder Diameter
0.2641 inches and 0.2651 inches first shoulder -
Shoulder Length
0.428 inches and 0.448 inches first shoulder -
Internal Drive Style
Cross recess type 1 -
Thread Diameter
0.250 inches -
Thready Qty Per Inch (tpi)
28 -
Countersink Angle
Between 99.0 degrees and 101.0 degrees -
Shoulder Shape
Round first shoulder -
Material
Steel comp e4340 or steel comp 8740 -
Material Specification
Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams6322 assn standard 2nd material response -
Surface Treatment
Cadmium and chromate -
Surface Treatment Specification
Qq-p-416, ty2, cl2 federal specification single treatment response -
Thread Series Designator
Unjf
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An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.
![Mechanic Bill explains Panel Assembly Fastener](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 5305-01-217-2925 shoulder screwManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
BACB30LU4-7X | Huck International, Inc. |
BACB30LU4-7X | Valley-todeco, Inc. |
BACB30LU4-7X | Federal Manufacturing Corporation |
BACB30LU4-7X | Sps Technologies, Llc |
BACB30LU4-7X | Arconic Global Fasteners & Rings, |
BACB30LU4-7X | Sps Technologies, Llc |
BACB30LU4-7X | Sonic Industries Inc. |
BACB30LU4-7X | Sps Technologies, Llc |
BACB30LU4-7X | The Boeing Company |
BACB30LU4-7X | Alcoa Global Fasteners, Inc. |
BACB30LU4-7X | Huck Intl Inc |
BACB30LU4-7X | Sps Technologies, Llc |
Stock Check
![](/public/images/partscage_shelf3.png)