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AN940-8 ✓ 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: 0.049 INCHES NOMINAL IN, hole_diameter: 0.182 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN, overall_diameter: 0.500 INCHES NOMINAL IN, surface_treatment: TIN OVERALL, peripheral_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-187-2366, 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
AN940-8
NSN: 5310-00-187-2366
FSC: 5310
CAGE: 57733 — STEWART-WARNER CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.049 INCHES NOMINAL IN
hole_diameter0.182 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
overall_diameter0.500 INCHES NOMINAL IN
surface_treatmentTIN OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-187-2366
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AN940-8 · 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
•
THICKNESS: 0.049 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT: TIN OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OVERALL DIAMETER: 0.500 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.182 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.049 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SURFACE TREATMENTTIN OVERALL
CENTER HOLE SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OVERALL DIAMETER0.500 INCHES NOMINAL IN
HOLE DIAMETER0.182 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
03005-04Interchangeable
interchangeable cross-reference
interchangeable
APD-1938-013Interchangeable
interchangeable cross-reference
interchangeable
74311-00Interchangeable
interchangeable cross-reference
interchangeable
D15-625LPC116-122Interchangeable
interchangeable cross-reference
interchangeable
9408Interchangeable
interchangeable cross-reference
interchangeable
A882PC69Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN940-8?
AN940-8 is a WASHER,FLAT.
What parts can replace AN940-8?
There are 20 known substitutes for AN940-8: 03005-04, APD-1938-013, 74311-00 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN940-8?
AN940-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-187-2366. 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