A6541

View detailed technical data, stock status, and sourcing information for: A6541

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A6541
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-944-2570
Item Name Code
06657
Assigment Date
02/25/1966 (60 years ago)

A nut having an externally splined sleeve which holds it in position when forced into a hole of slightly smaller diameter.

2a thread class, 0.688 inches nominal thread length, round head style, right-hand thread direction, 0.844 inches minimum and 0.875 inches maximum fastener 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
2a
Thread Direction
right-hand
Thread Length
0.688 inches nominal
Fastener Length
0.844 inches minimum and 0.875 inches maximum
Head Style
round
Head Diameter
0.240 inches minimum and 0.260 inches maximum
Head Height
0.091 inches minimum and 0.103 inches maximum
Internal Drive Style
slot
Nominal Thread Diameter
0.138 inches
Thread Quantity Per Inch
32
Criticality Code Justification
feat
Screw Material
steel
Screw Surface Treatment
cadmium
Screw Surface Treatment Document And Classification
qq-p-416,ty 1,cl 3 fed spec single treatment response
Special Features
hole drilled in end,0.0635 in. min,0.0670 in. max dia,0.172 in. min,0.202 in. max deep
Thread Series Designator
unc

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
46-0991 Machine Screw
46-0991-1 Machine Screw
A6541 Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-944-2570?
The FSCG of the NSN 5305-00-944-2570 is 5305
Does the NSN 5305-00-944-2570 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-944-2570 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 5305-00-944-2570 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-944-2570 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 5305-00-944-2570 was assigned to the Federal Catalog?
It was assigned 60 years ago, on Fri, Feb 25, 1966

Professional Distribution

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