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Panel Screw Assembly NSN 5305-01-212-4557

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 5305-01-212-4557 NSN: 5305-01-212-4557

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
0.250 inches
Fastener Length
Between 0.525 inches and 0.545 inches
Head Style
Flat countersunk
Head Diameter
Between 0.340 inches and 0.350 inches
Internal Drive Style
Cross recess type 1
Material Accommodated Thickness
Between 0.090 inches and 0.125 inches
Thread Diameter
0.164 inches
Thready Qty Per Inch (tpi)
32
Countersink Angle
Between 99.0 degrees and 101.0 degrees
Material
Steel comp 302 or steel comp 304 or steel comp 305 or steel comp 316 or steel comp 384 fastener
Material Specification
Qq-a-225/8 federal specification single material response stand-off
Surface Treatment
Passivate stand-off
Surface Treatment Specification
Qq-p-35 federal specification single treatment response stand-off
Thread Series Designator
Unc
FSC
5305 Screws
NIIN
012124557
NSN
5305012124557

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
DPY7900P-8F-B-3
Cage Code:
17446
Status:
A
MSDS:
Part Number:
12703500-1
Cage Code:
19200
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 5305-01-212-4557
What are the manufacturers of nsn 5305012124557?
Does this nsn 5305012124557 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305012124557
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 5305012124557 contain any precious metals?
No precious metal content.
Does nsn 5305012124557 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305012124557?
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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