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11X145 ✓ 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 thickness: 0.125 INCHES NOMINAL IN, hole_diameter: 0.875 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN, overall_diameter: 1.750 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND, cross-sectional_shape_style: RECTANGULAR. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-076-0351, 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
11X145
NSN: 5310-01-076-0351
FSC: 5310
CAGE: 0W357 — PDI GROUND SUPPORT SYSTEMS, INC. (USA)
SPECIFICATIONS
thickness0.125 INCHES NOMINAL IN
hole_diameter0.875 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
overall_diameter1.750 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-01-076-0351
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 11X145 · 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
•
PERIPHERAL SHAPE STYLE: ROUND
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.875 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OVERALL DIAMETER: 1.750 INCHES NOMINAL IN
•
THICKNESS: 0.125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL SHAPE STYLEROUND
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.875 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL DIAMETER1.750 INCHES NOMINAL IN
THICKNESS0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
47012Interchangeable
interchangeable cross-reference
interchangeable
65PT500-0550-2Interchangeable
interchangeable cross-reference
interchangeable
X1220T15Interchangeable
interchangeable cross-reference
interchangeable
21158-0899Interchangeable
interchangeable cross-reference
interchangeable
450351Interchangeable
interchangeable cross-reference
interchangeable
U0410265Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11X145?
11X145 is a WASHER,FLAT.
What parts can replace 11X145?
There are 7 known substitutes for 11X145: 47012, 65PT500-0550-2, X1220T15 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11X145?
11X145 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-076-0351. 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