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Technical Data Sheet
PartsTable / COMPONENT / 50921R3B25R
50921R3B25R ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The PIN,QUICK RELEASE is a the manufacturer industrial component. Key specifications include grip_length: 2.500 INCHES MINIMUM AND 2.520 INCHES MAXIMUM IN, actuation_type: PUSH, shank_diameter: 0.1870 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM SHANK, actuation_method: PUSH BUTTON, style_designator: BUTTON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-850-7010, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
50921R3B25R
NSN: 5315-00-850-7010
FSC: 5315
CAGE: 84256 — AVIBANK MFG., INC. DBA AVIBANK MANUFACTURING INC (USA)
SPECIFICATIONS
grip_length2.500 INCHES MINIMUM AND 2.520 INCHES MAXIMUM IN
actuation_typePUSH
shank_diameter0.1870 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
detent_quantity2
hardness_rating36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM SHANK
actuation_methodPUSH BUTTON
style_designatorBUTTON
pin_attachment_typeHOOK OR RING
button_handle_diameter0.720 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
shoulder_to_head_end_distance0.830 INCHES MAXIMUM IN
detent_to_tapered_end_distance0.230 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
NSN5315-00-850-7010
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 50921R3B25R · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DETENT QUANTITY: 2
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM SPINDLE
•
STYLE DESIGNATOR: BUTTON
•
PIN ATTACHMENT TYPE: HOOK OR RING
•
DETENT TO TAPERED END DISTANCE: 0.230 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
•
SHOULDER TO HEAD END DISTANCE: 0.830 INCHES MAXIMUM IN
•
BUTTON HANDLE DIAMETER: 0.720 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
DETENT QUANTITY2
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM SPINDLE
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM SHANK
STYLE DESIGNATORBUTTON
PIN ATTACHMENT TYPEHOOK OR RING
DETENT TO TAPERED END DISTANCE0.230 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN
SHOULDER TO HEAD END DISTANCE0.830 INCHES MAXIMUM IN
BUTTON HANDLE DIAMETER0.720 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
ACTUATION METHODPUSH BUTTON
GRIP LENGTH2.500 INCHES MINIMUM AND 2.520 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
50512Interchangeable
interchangeable cross-reference
interchangeable
SMB148346Interchangeable
interchangeable cross-reference
interchangeable
50512AInterchangeable
interchangeable cross-reference
interchangeable
N11746Interchangeable
interchangeable cross-reference
interchangeable
67130-1102Interchangeable
interchangeable cross-reference
interchangeable
67130Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 50921R3B25R?
50921R3B25R is a PIN,QUICK RELEASE.
What parts can replace 50921R3B25R?
There are 17 known substitutes for 50921R3B25R: 50512, SMB148346, 50512A and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 50921R3B25R?
50921R3B25R is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-850-7010. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026