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Technical Data Sheet
PartsTable / COMPONENT / 310-0027-000
310-0027-000 ✓ 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: 0.037 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN, hole_diameter: 0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN, overall_diameter: 1.119 INCHES MINIMUM AND 1.131 INCHES MAXIMUM IN, surface_treatment: CADMIUM OVERALL, peripheral_shape_style: ROUND, center_hole_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 5310-00-603-0621, 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
310-0027-000
NSN: 5310-00-603-0621
FSC: 5310
CAGE: 79807 — WROUGHT WASHER MFG., INC. (USA)
SPECIFICATIONS
thickness0.037 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
hole_diameter0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN
overall_diameter1.119 INCHES MINIMUM AND 1.131 INCHES MAXIMUM IN
surface_treatmentCADMIUM OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5310-00-603-0621
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 310-0027-000 · 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
•
HOLE DIAMETER: 0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN
•
THICKNESS: 0.037 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
CENTER HOLE SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 1.119 INCHES MINIMUM AND 1.131 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.497 INCHES MINIMUM AND 0.503 INCHES MAXIMUM IN
THICKNESS0.037 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
CENTER HOLE SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
OVERALL DIAMETER1.119 INCHES MINIMUM AND 1.131 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
125629Interchangeable
interchangeable cross-reference
interchangeable
FFB571TYPEAInterchangeable
interchangeable cross-reference
interchangeable
425-4Interchangeable
interchangeable cross-reference
interchangeable
25953-2-12Interchangeable
interchangeable cross-reference
interchangeable
102036XInterchangeable
interchangeable cross-reference
interchangeable
JJA2964-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 310-0027-000?
310-0027-000 is a WASHER,FLAT.
What parts can replace 310-0027-000?
There are 12 known substitutes for 310-0027-000: 125629, FFB571TYPEA, 425-4 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 310-0027-000?
310-0027-000 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-603-0621. 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