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Technical Data Sheet
5231650 ✓ 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,GROOVED,HEADED is a the manufacturer industrial component. Key specifications include height: 0.188 INCHES NOMINAL IN, diameter: 0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, material: STEEL OVERALL, head_style: KNURLED NO. 1, grip_length: 1.957 INCHES NOMINAL IN, first_end_style: CHAMFERED.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-523-1650, 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
5231650
NSN: 5315-00-523-1650
FSC: 5315
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
height0.188 INCHES NOMINAL IN
diameter0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
materialSTEEL OVERALL
head_styleKNURLED NO. 1
grip_length1.957 INCHES NOMINAL IN
first_end_styleCHAMFERED
hardness_rating54.0 ROCKWELL C MINIMUM AND 61.0 ROCKWELL C MAXIMUM OVERALL
undercut_radius0.020 INCHES NOMINAL IN
effective_length1.312 INCHES NOMINAL IN
style_designatorGROOVE
pin_head_diameter0.260 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
undercut_diameter0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
NSN5315-00-523-1650
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5231650 · 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
FIRST END TAPER LENGTH: 0.031 INCHES NOMINAL IN
GRIP LENGTH: 1.957 INCHES NOMINAL IN
UNDERCUT RADIUS: 0.020 INCHES NOMINAL IN
MATERIAL: STEEL OVERALL
STYLE DESIGNATOR: GROOVE
HEIGHT: 0.188 INCHES NOMINAL IN
PIN HEAD DIAMETER: 0.260 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
UNDERCUT DIAMETER: 0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END TAPER LENGTH0.031 INCHES NOMINAL IN
GRIP LENGTH1.957 INCHES NOMINAL IN
UNDERCUT RADIUS0.020 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORGROOVE
HEIGHT0.188 INCHES NOMINAL IN
PIN HEAD DIAMETER0.260 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
UNDERCUT DIAMETER0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
HARDNESS RATING54.0 ROCKWELL C MINIMUM AND 61.0 ROCKWELL C MAXIMUM OVERALL
HEAD STYLEKNURLED NO. 1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
G-3167Interchangeable
interchangeable cross-reference
interchangeable
10-4715Interchangeable
interchangeable cross-reference
interchangeable
10-4715 ITEM 16Interchangeable
interchangeable cross-reference
interchangeable
3239990-1Interchangeable
interchangeable cross-reference
interchangeable
C3-167Interchangeable
interchangeable cross-reference
interchangeable
2165122Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5231650?
5231650 is a PIN,GROOVED,HEADED.
What parts can replace 5231650?
There are 6 known substitutes for 5231650: G-3167, 10-4715, 10-4715 ITEM 16 and 3 more. Substitute compatibility should be verified for your specific system.
Is 5231650 still available?
5231650 is currently cancelled.
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