BLK4148

View detailed technical data, stock status, and sourcing information for: BLK4148

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BLK4148
Federal Supply Group
Hand Tools
Federal Supply Classification
5120 Nonpowered Nonedged Hand Tools
National Stock Number
5120-00-277-5072
Item Name Code
17184
Assigment Date
01/01/1963 (63 years ago)

12 point single end internal wrenching surface shape, 1.000 inches maximum head thickness, steel overall material, 12.750 inches minimum overall length, 1.500 inches nominal single end wrenching surface size

Product Characteristics

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

Overall Length
12.750 inches minimum
Head Thickness
1.000 inches maximum
Wrenching Surface Size
1.500 inches nominal single end
Wrenching Surface Shape
12 point single end internal
Material
steel overall
Surface Treatment
phosphate overall
Style Designator
flare nut single end
Specification/Standard Data
0u583-sae as4167 professional/industrial association standard
Nondefinitive Spec/Std Data
2 type and 2 class and d style

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5120-00-357-8320 No Name Available 01/01/1963
5120-01-306-3240 No Name Available 10/01/2016

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
10086323 Open End Box Wrench
BLK4148 Open End Box Wrench
MTFBLK4148 Open End Box Wrench
RX48A Open End Box Wrench

FAQs

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

What is the FSCG of the NSN 5120-00-277-5072?
The FSCG of the NSN 5120-00-277-5072 is 5120
Does the NSN 5120-00-277-5072 have a Schedule B code assigned?
Yes, the Schedule B code is 8204110030
Does NSN 5120-00-277-5072 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 5120-00-277-5072 contain precious materials?
Item does not contain precious metal.
Does NSN 5120-00-277-5072 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 5120-00-277-5072 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

Professional Distribution

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