FC7739B

View detailed technical data, stock status, and sourcing information for: FC7739B

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FC7739B
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5310 Nuts and Washers
National Stock Number
5310-00-404-8189
Item Name Code
13393
Assigment Date
08/20/1969 (57 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes:undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also bolt, externally relieved body and bolt, internal wrenching.

0.984 inches minimum and 1.016 inches maximum hole diameter, round peripheral shape style, rectangular cross-sectional shape style, round center hole shape style, 0.225 inches minimum and 0.230 inches maximum thickness

Product Characteristics

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

Cross-Sectional Shape Style
rectangular
Hole Diameter
0.984 inches minimum and 1.016 inches maximum
Peripheral Shape Style
round
Center Hole Shape Style
round
Thickness
0.225 inches minimum and 0.230 inches maximum
Overall Diameter
1.869 inches minimum and 1.873 inches maximum
Material
steel comp 1213 overall
Material Document And Classification
aisi assn std all material responses overall
Surface Treatment
copper overall
Surface Treatment Document And Classification
mil-c-14550 cl 3 mil spec single treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5310-00-492-6427 No Name Available 04/01/1991

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
111468H Flat Washer
5310004048189 Flat Washer
F7739 Flat Washer
FC7739 Flat Washer
FC7739B Flat Washer

FAQs

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

What is the FSCG of the NSN 5310-00-404-8189?
The FSCG of the NSN 5310-00-404-8189 is 5310
Does NSN 5310-00-404-8189 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 5310-00-404-8189 contain precious materials?
Precious metal content is unknown
Does NSN 5310-00-404-8189 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 5310-00-404-8189 was assigned to the Federal Catalog?
It was assigned 57 years ago, on Wed, Aug 20, 1969

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