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Panel Screw Assembly NSN 5305-01-256-4471

Item Description

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

NSN 5305-01-256-4471 NSN: 5305-01-256-4471

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Fastener Length
Between 0.622 inches and 0.632 inches
Head Style
Knurled no. 1
Head Diameter
0.531 inches
Head Height
0.530 inches
Internal Drive Style
Slot
End Application
Defense support program
Material Accommodated Thickness
Between 0.032 inches and 0.093 inches
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
28
Material
Steel comp 302 spring
Material Specification
Qq-a-225/8 federal specification single material response stand-off
Surface Treatment
Passivate spring
Surface Treatment Specification
Qq-p-35 federal specification single treatment response spring
Thread Series Designator
Unf
FSC
5305 Screws
NIIN
012564471
NSN
5305012564471

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
FRBWW7500-12-B-5
Cage Code:
0HDW7
Status:
A
MSDS:
Part Number:
FT1200-12-2-5
Cage Code:
58794
Status:
A
MSDS:
Part Number:
482148-109
Cage Code:
3B150
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318152000
  • NAICS: 332722
  • SITC: 69421
  • Description: Bolts and bolts and their nuts or washers exported in the same shipment
  • End Use (Code 12110):
    Iron and steel products, other

Q & A

Frequently asked questions for NSN 5305-01-256-4471
What are the manufacturers of nsn 5305012564471?
Does this nsn 5305012564471 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305012564471
A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. attached to panel by threaded bushing or by flaring end of stand-off, or bushing. used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. may be spring loaded.
Does nsn 5305012564471 contain any precious metals?
No precious metal content.
Does nsn 5305012564471 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305012564471?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
33044
FIIG:
A003B0
App. Key:
SU
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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