BLC4L21N

View detailed technical data, stock status, and sourcing information for: BLC4L21N
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5315 Pins, Machine Keys and Nails

National Stock Number

5315-00-419-0758

Item Name Code

08323

Assigment Date

12/02/1970 (55 years ago)

0.2470 inches minimum and 0.2485 inches maximum shank diameter, 2 detent quantity, 0.360 inches minimum and 0.450 inches maximum head diameter, 1.000 inches minimum and 1.125 inches maximum ring handle diameter, push button actuation method

Product Characteristics

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

Head Diameter: 0.360 inches minimum and 0.450 inches maximum
Shank Diameter: 0.2470 inches minimum and 0.2485 inches maximum
Ring Handle Diameter: 1.000 inches minimum and 1.125 inches maximum
Detent Quantity: 2
Actuation Method: push button
End Item Identification: w/s: howitzer, m-109 series; helicopter, seasprite h-2; aircraft, f-16; airborne mobile dir air spt ctl (2id), (02m jul83) (an/uyq-3a)
Grip Length: 2.100 inches minimum and 2.120 inches maximum
Actuation Type: pull and push
Hardness Rating: 40.0 rockwell c minimum shank
Hardness Rating: 40.0 rockwell c minimum spindle
Shoulder To Head End Distance: 0.935 inches minimum
Pin Attachment Type: hook
Detent To Tapered End Distance: 0.360 inches minimum and 0.410 inches maximum
Material: steel comp 630 or steel comp 632 shank
Material: steel comp 630 or steel comp 632 spindle
Material Document And Classification: ams 5643 assn std 1st material response or ams 5657 assn std 2nd material response shank
Material Document And Classification: ams 5643 assn std 1st material response or ams 5657 assn std 2nd material response spindle
Surface Treatment: passivate spindle
Surface Treatment: passivate shank
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response shank
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response spindle
Style Designator: ring handle

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5315-00-869-3177	No Name Available	07/01/2007

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
723009582100	Quick Release Pin
BLC4L21N	Quick Release Pin
BLC4L21NM	Quick Release Pin
BLC4R21N	Quick Release Pin
DLC4L21N	Quick Release Pin
LH4C-R-21M	Quick Release Pin
LH4CL0421	Quick Release Pin
LH4CR2100	Quick Release Pin
LH4S-L-28M	Quick Release Pin
MS17989C421	Quick Release Pin
MS17990C421	Quick Release Pin

FAQs

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

What is the FSCG of the NSN 5315-00-419-0758?

The FSCG of the NSN 5315-00-419-0758 is 5315

Does the NSN 5315-00-419-0758 have a Schedule B code assigned?

Yes, the Schedule B code is 9021100090

Does NSN 5315-00-419-0758 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 5315-00-419-0758 contain precious materials?

Precious metal content is unknown

Does NSN 5315-00-419-0758 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 5315-00-419-0758 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, Dec 2, 1970