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Technical Data Sheet
PartsTable / COMPONENT / 5310001777684
5310001777684 ✓ 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,KEY is a the manufacturer industrial component. Key specifications include hole_diameter: 1.333 INCHES MINIMUM AND 1.353 INCHES MAXIMUM IN, outside_diameter: 1.812 INCHES MINIMUM AND 1.827 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN, external_key_quantity: 15, external_prebent_key_width: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-177-7684, 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
5310001777684
NSN: 5310-00-177-7684
FSC: 5310
CAGE: A00AM — E.C.A ETABLISSEMENT CENTRAL DES APPROVISIONNEMENTS DES FORCES ARMEES ROYALES
SPECIFICATIONS
hole_diameter1.333 INCHES MINIMUM AND 1.353 INCHES MAXIMUM IN
outside_diameter1.812 INCHES MINIMUM AND 1.827 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN
external_key_quantity15
external_prebent_key_width0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
internal_prebent_key_width0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
internal_prebent_key_length0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
nondefinitive_spec/std_data1 TYPE AND 2 CLASS AND 3 CLASS
overall_distance_including_keys2.250 INCHES MAXIMUM IN
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
NSN5310-00-177-7684
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5310001777684 · 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
•
INTERNAL PREBENT KEY LENGTH: 0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1012 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1026 OR STEEL COMP 1030 OR STEEL COMP 1034 OR STEEL COMP 1035 OVERALL
•
EXTERNAL PREBENT KEY WIDTH: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.812 INCHES MINIMUM AND 1.827 INCHES MAXIMUM IN
•
HOLE DIAMETER: 1.333 INCHES MINIMUM AND 1.353 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 2.250 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 2 CLASS AND 3 CLASS
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL PREBENT KEY LENGTH0.094 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1010 OR STEEL COMP 1011 OR STEEL COMP 1012 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1026 OR STEEL COMP 1030 OR STEEL COMP 1034 OR STEEL COMP 1035 OVERALL
EXTERNAL PREBENT KEY WIDTH0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.812 INCHES MINIMUM AND 1.827 INCHES MAXIMUM IN
HOLE DIAMETER1.333 INCHES MINIMUM AND 1.353 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS2.250 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 2 CLASS AND 3 CLASS
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
INTERNAL PREBENT KEY WIDTH0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
MATERIAL THICKNESS0.046 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
5310000085904Interchangeable
interchangeable cross-reference
interchangeable
MILW21338Interchangeable
interchangeable cross-reference
interchangeable
MS19069A15Interchangeable
interchangeable cross-reference
interchangeable
MS19070-093Interchangeable
interchangeable cross-reference
interchangeable
MS19070-103Interchangeable
interchangeable cross-reference
interchangeable
MS19070-163Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5310001777684?
5310001777684 is a WASHER,KEY.
What parts can replace 5310001777684?
There are 19 known substitutes for 5310001777684: 5310000085904, MILW21338, MS19069A15 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5310001777684?
5310001777684 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-177-7684. 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