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5305-01-027-2006

Find complete technical information, availability, and procurement data for: 5305-01-027-2006

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5305-01-027-2006
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-027-2006
Item Name Code
29294
Assigment Date
09/10/1976 (49 years ago)

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

0.443 inches minimum and 0.510 inches maximum thread length, 1.078 inches minimum and 1.125 inches maximum fastener length, 3a thread class, right-hand thread direction, flat countersunk undercut head style

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
0.443 inches minimum and 0.510 inches maximum
Fastener Length
1.078 inches minimum and 1.125 inches maximum
Head Style
flat countersunk undercut
Head Diameter
0.502 inches minimum and 0.507 inches maximum
Head Height
0.071 inches minimum and 0.073 inches maximum
Grip Diameter
0.2490 inches minimum and 0.2495 inches maximum
Internal Drive Style
high-torque
Nominal Thread Diameter
0.250 inches
Grip Length
0.615 inches minimum and 0.635 inches maximum
Thread Quantity Per Inch
28
Countersink Angle
100.0 degrees nominal
Surface Finish
32.0 microinches grip
Surface Finish
32.0 microinches threads
Special Features
furnished with one o-ring
Material
steel comp xm-13 overall
Material Document And Classification
ams 5629 assn std single material response overall
Surface Treatment
passivate 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
CHT4020-4-10A Close Tolerance Screw
HT4020-4-10A Close Tolerance Screw
ST3M652C4-10A Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-027-2006?
The FSCG of the NSN 5305-01-027-2006 is 5305
Does the NSN 5305-01-027-2006 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-027-2006 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 5305-01-027-2006 contain precious materials?
Precious metal content is unknown
Does NSN 5305-01-027-2006 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 5305-01-027-2006 was assigned to the Federal Catalog?
It was assigned 49 years ago, on Fri, Sep 10, 1976

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