NAS1221R4E4

Close Tolerance Bolt

email this to someone

Description:

Fastener Length: 11/16", Thread: 1/4-28, Thread Length: 27/64

* Manufacturer certifications are shipped with your order FREE of charge

Add to Cart Up to qty 150 ships same day if ordered before 4pm EST

NAS1221R4E4 Price:	buy now $4.62 Each
Quantity: Pre-packaged bag qty: 10 ea
* Sold in increments of 10

Add item to quote

NAS1221R4E4 Datasheet Features and Specification

Thread Class:

Thread Direction:

Right-hand

Thread Length:

0.425 inches nominal

Fastener Length:

0.661 inches minimum and 0.691 inches maximum

Head Style:

Flat countersunk

Head Diameter:

0.461 inches minimum and 0.507 inches maximum

Internal Drive Style:

Torque-set ribbed

Thread Diameter:

0.250 inches

Thready Qty Per Inch (tpi):

Min. Tensile Strength (psi):

160000 pounds per square inch

Countersink Angle:

99.0 degrees minimum and 101.0 degrees maximum

Part Name Assigned By Controlling Agency:

Navy special project

Screw Material:

Iron alloy 660

Screw Material Specification:

Ama5731 assn std single material response or ama5732 assn std single material response or ams5737 assn std single material response

Screw Surface Treatment:

Passivate

Screw Surface Treatment Specification:

Qq-p-35 fed spec single treatment response

Thread Series Designator:

Unjf

Specification Data:

80205-nas1221 professional/industrial association standard

Quick Specs

Thread Size	1/4
Thread Qty	28
Material	Iron
Length	11/16

Additional Information

SKU / Model:	NAS1221R4E4
NSN:	5305-01-365-1910
FSC:	Screws / 5305
Product Series:	NAS1221R4E
Pack Weight (Approx.)	0.000 lb
Minimum Qty (MOQ):	10
Schedule B:	7318.15.8085
ECCN:	EAR99
National Motor Freight:	096640, Screws, Iron Or Steel
Download PDF Version NAS1221R4E4_Military-Fasteners-com.pdf

* report an issue on this page

More NAS1221R4E close tolerance bolts

NAS1221R4E6

Fastener Length: 3/8", Thread: 1/2-

NAS1221R4E5

Fastener Length: 3/4", Thread: 1/4-28, Thread Length: 27/64"

NAS1221R4E3

NAS1221R4E23

Fastener Length: 1-7/16", Thread: 1/2-

Product Image Gallery

Product code NAS1221R4E4

Have a question

If you require a quote on this or any product please visit our quote request page »

Browse our frequently asked questions page.

You may contact us by phone at +1 (904) 543-6395 or email us using our contact form.

Our hours of operation are 8:00am - 6:00pm EST

Customer Reviews

View our Google profile

Jaylee E.

It is always a pleasure ordering from Military Fasteners. You can talk to a real, live, human being who is helpful and courteous thru the whole process. I received my order on time and as promised. Military Fasteners is my Go To place for all aviation supplies.

5.0

Carmen M.

Military Fasteners always delivered on what I purchased. And what I returned Military Fasteners is prompt on returning it as crediting my account. I only order for myself, so I'm quite satisfied the way Military Fasteners takes care of me only as a occasional customer. Thank you Military Fasteners Personnel.

5.0

Dorian C.

Wow, great quick order. Website is easy to navigate and orders are shipped quickly. I have already passed along to others as having the right parts and quick shipping. Thanks, Danny S, Louisiana

4.0

Kelsey V.

As always, orders are shipped promptly and received when expected. Rarely can you find products at lower cost than at Military Fasteners. The web site is easy to use. My favorite place to order from. When looking for aviation products, I always go to Military Fasteners first.

5.0