Price and availability subject to change. All orders subject to acceptance.
NSN
5305-00-149-9951
Description
Screw, Close Tolerance
Manufacturer
On quotation
CAGE code
On quotation
Condition
On quotation
Certs
On quotation
Rev level
On quotation
Shelf life
On quotation
Manufacturer, condition, certifications, revision and shelf life depend on the lot supplied and are stated on your quotation.
Part identification
NSN
5305-00-149-9951
NIIN
00-149-9951
FSC
5305
FSG
53
Item Name
Screw, Close Tolerance
INC
29294
Assigned Date
01-JAN-1963
Status
Active
Technical characteristics
Thread Class
3A
Thread Direction
Right-hand
Thread Length
0.443 inches minimum and 0.510 inches maximum
Fastener Length
3.141 inches minimum and 3.188 inches maximum
Head Style
Flat countersunk
Head Diameter
0.497 inches minimum and 0.507 inches maximum
Grip Diameter
0.2487 inches minimum and 0.2492 inches maximum
Internal Drive Style
Hexagon
Nominal Thread Diameter
0.250 inches
Grip Length
2.678 inches minimum and 2.698 inches maximum
Width Across Flats
0.157 inches minimum and 0.159 inches maximum
Thread Quantity per Inch
28
Minimum Tensile Strength
160000 pounds per square inch
Hardness Rating
36.0 rockwell C minimum overall and 40.0 rockwell C maximum overall
Countersink Angle
99.0 degrees minimum and 101.0 degrees maximum
Surface Finish
32.0 microinches grip
Material
Steel comp 4140 overall or steel comp E4340 overall or steel comp 6150 overall or steel comp 8735 overall or steel comp 8740 overall
Material Document and Classification
MIL-S-5626 mil spec 1ST material response overall or MIL-S-5000 mil spec 2ND material response overall or MIL-S-8503 mil spec 3RD material response overall or MIL-S-6098 mil spec 4TH material response overall or MIL-S-6049 mil spec 5TH material response overall
Thread Series Designator
UNF
Specification/Standard Data
80205-NAS334 professional/industrial association standard
Manufacturers
National Aerospace Standards (CAGE 80205) — Type C
