BLC4R21SM

View detailed technical data, stock status, and sourcing information for: BLC4R21SM
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5315 Pins, Machine Keys and Nails

National Stock Number

5315-00-929-1758

Item Name Code

08323

Assigment Date

09/07/1966 (59 years ago)

2 detent quantity, 0.310 inches minimum and 0.530 inches maximum head diameter, 1.060 inches nominal ring handle diameter, push button actuation method, 0.247 inches minimum and 0.248 inches maximum shank diameter

Product Characteristics

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

Head Diameter: 0.310 inches minimum and 0.530 inches maximum
Shank Diameter: 0.247 inches minimum and 0.248 inches maximum
Ring Handle Diameter: 1.060 inches nominal
Detent Quantity: 2
Actuation Method: push button
Grip Length: 2.100 inches minimum and 2.120 inches maximum
Actuation Type: push
Hardness Rating: 40.0 rockwell c minimum shank
Hardness Rating: 40.0 rockwell c minimum spindle
Shoulder To Head End Distance: 0.780 inches nominal
Pin Attachment Type: ring
Detent To Tapered End Distance: 0.290 inches nominal
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
Style Designator: ring handle

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
BLC4R21SM	Quick Release Pin
BLS4R21S	Quick Release Pin
LG4CR21M	Quick Release Pin
MS17987C421	Quick Release Pin
SLC4R21	Quick Release Pin

FAQs

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

What is the FSCG of the NSN 5315-00-929-1758?

The FSCG of the NSN 5315-00-929-1758 is 5315

Does the NSN 5315-00-929-1758 have a Schedule B code assigned?

Yes, the Schedule B code is 7319909000

Does NSN 5315-00-929-1758 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 5315-00-929-1758 contain precious materials?

Precious metal content is unknown

Does NSN 5315-00-929-1758 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 5315-00-929-1758 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Sep 7, 1966