NAS1801-4-20

Machine Screw

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Description:

length: 1-1/4", thread: 1/4-28, hex head screw, cruciform recess, full thread, alloy steel

* Manufacturer certifications are shipped with your order FREE of charge
NAS1801-4-20
NAS1801-4-20
NAS1801-4-20
NAS1801-4-20
NAS1801-4-20
NAS1801-4-20
Add to Cart Up to qty 750 ships same day if ordered before 4pm EST
NAS1801-4-20 Price:
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$1.65 Each
Quantity:
Pre-packaged bag qty: 25 ea
* Sold in increments of 25
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NAS1801-4-20 Datasheet Features and Specification

Thread Length:
Between 1.170 inches and 1.249 inches
Thread Direction:
Right-hand
Thread Diameter:
0.250 inches
Thread Class:
3a
Specification Data:
80205-nas1801 professional/industrial association standard
Surface Treatment:
Cadmium and chromate
Surface Treatment Specification:
Cl 2 federal specification single treatment response type 2 qq-p-416
Material Specification:
Mil-s-5000 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams 6322 assn standard 2nd material response
Material:
Steel
Min. Tensile Strength (psi):
160000 pounds per square inch
Internal Drive Style:
Cross recess type 1
Head Style:
Hexagon
Head Height:
Between 0.125 inches and 0.140 inches
Fastener Length:
Between 1.234 inches and 1.281 inches
Thread Qty Per Inch (tpi):
28
Thread Series Designator:
Unjf (fine thread with external controlled root radius)
Width Between Flats:
Between 0.367 inches and 0.376 inches
Quick Specs
Thread Size 1/4
Thread Qty 28
Thread Series UNJF
Thread Class 3A
Material Steel

Additional Information

SKU / Model: NAS1801420
NSN: 5305-01-212-4522
FSC: Screws / 5305
Product Series: NAS1801
Pack Weight (Approx.) 0.456 lb
Minimum Qty (MOQ): 25
ECCN: EAR99
National Motor Freight: 093486, Bolts,nuts Or Screws, Noi (sub 3)
Download PDF Version
NAS1801-4-20_Military-Fasteners-com.pdf
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Product Image Gallery

Product code NAS1801-4-20
NAS1801-4-20
NAS1801-4-20
NAS1801-4-20
NAS1801-4-20
NAS1801-4-20
NAS1801-4-20

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The products sent allowed the repair to be completed in a timely manner. Thank you for Military Fasteners being there and having parts available to allow our vintage aircraft to continue flight.

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I was looking for hard to find parts for a safety critical application. The first couple of places I tried had the part on their web page but when I tried to order it they said, sorry, they did not actually have the parts. I called Military Fasteners. Talked to an employee without delay. She looked up the part number, told me who manufactured them (important), where the company is located (very important) and shipped the parts immediately from their own inventory. Super nice, helpful, efficient and knowledgeable. They get it.

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