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Technical Data Sheet
PartsTable / COMPONENT / X17-21-14-1-2
X17-21-14-1-2 ✓ 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 WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.062 INCHES NOMINAL IN, hole_diameter: 0.453 INCHES NOMINAL IN, overall_diameter: 0.656 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-264-1967, 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
X17-21-14-1-2
NSN: 5310-00-264-1967
FSC: 5310
CAGE: 09780 — BURCH COMPANY INC, THE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.062 INCHES NOMINAL IN
hole_diameter0.453 INCHES NOMINAL IN
overall_diameter0.656 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-264-1967
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: X17-21-14-1-2 · 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
•
MATERIAL: STEEL OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
HOLE DIAMETER: 0.453 INCHES NOMINAL IN
•
OVERALL DIAMETER: 0.656 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HOLE DIAMETER0.453 INCHES NOMINAL IN
OVERALL DIAMETER0.656 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
143519Interchangeable
interchangeable cross-reference
interchangeable
11951Interchangeable
interchangeable cross-reference
interchangeable
4257Interchangeable
interchangeable cross-reference
interchangeable
B107.10Interchangeable
interchangeable cross-reference
interchangeable
B107.10 TY2CL3STAInterchangeable
interchangeable cross-reference
interchangeable
545-1017-003Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is X17-21-14-1-2?
X17-21-14-1-2 is a WASHER,FLAT.
What parts can replace X17-21-14-1-2?
There are 15 known substitutes for X17-21-14-1-2: 143519, 11951, 4257 and 12 more. Substitute compatibility should be verified for your specific system.
Is X17-21-14-1-2 still available?
X17-21-14-1-2 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: July 2026