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5305-01-278-3789

Find complete technical information, availability, and procurement data for: 5305-01-278-3789

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5305-01-278-3789
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-278-3789
Item Name Code
29294
Assigment Date
05/04/1988 (38 years ago)

A nut, round in shape, having all or part of its outer surface knurled. It may have provisions for external wrenching. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, round. (when height or thickness, and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance).

fillister countersunk head style, 3a thread class, 2.079 inches minimum and 2.109 inches maximum fastener length, right-hand thread direction, 0.319 inches minimum and 0.431 inches maximum thread length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
3a
Thread Direction
right-hand
Thread Length
0.319 inches minimum and 0.431 inches maximum
Fastener Length
2.079 inches minimum and 2.109 inches maximum
Head Style
fillister countersunk
Head Diameter
0.297 inches minimum and 0.302 inches maximum
Head Height
0.013 inches nominal
Grip Diameter
0.1890 inches minimum and 0.1895 inches maximum
Internal Drive Style
high-torque
Nominal Thread Diameter
0.190 inches
Grip Length
1.678 inches minimum and 1.698 inches maximum
Features Provided
cetyl alcohol lubricant
Thread Quantity Per Inch
32
Minimum Tensile Strength
125000 pounds per square inch
Countersink Angle
99.0 degrees minimum and 101.0 degrees maximum
Special Features
screw supplied with min. of 40 percent of non-bearing head surface coated with white paint color no. 37875 per fed-std-595
Material
steel comp xm-13 overall
Material Document And Classification
ams 5629 assn std single material response overall
Surface Treatment
passivate overall
Surface Treatment Document And Classification
qq-p-35 fed spec single treatment response overall
Thread Series Designator
unjf

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
10113634 Close Tolerance Screw
HT4024L3-27 Close Tolerance Screw
ST3M455-3L27 Close Tolerance Screw
ST3M455-3L27-1 Close Tolerance Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-01-278-3789?
The FSCG of the NSN 5305-01-278-3789 is 5305
Does the NSN 5305-01-278-3789 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-278-3789 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5305-01-278-3789 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-278-3789 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5305-01-278-3789 was assigned to the Federal Catalog?
It was assigned 38 years ago, on Wed, May 4, 1988

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