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Technical Data Sheet
PartsTable / COMPONENT / 771026P6
771026P6 ✓ 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: 4.192 INCHES MINIMUM AND 4.222 INCHES MAXIMUM IN, outside_diameter: 5.000 INCHES MINIMUM AND 5.045 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.094 INCHES NOMINAL IN, external_key_quantity: 19, external_prebent_key_width: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-186-0980, 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
771026P6
NSN: 5310-00-186-0980
FSC: 5310
CAGE: 97993 — GENERAL DYNAMICS DEFENSE SYSTEMS INC. DBA GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS (USA)
SPECIFICATIONS
hole_diameter4.192 INCHES MINIMUM AND 4.222 INCHES MAXIMUM IN
outside_diameter5.000 INCHES MINIMUM AND 5.045 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.094 INCHES NOMINAL IN
external_key_quantity19
external_prebent_key_width0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
internal_prebent_key_width0.313 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN
internal_prebent_key_length0.250 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
overall_distance_including_keys5.703 INCHES NOMINAL IN
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
NSN5310-00-186-0980
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 771026P6 · 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
•
EXTERNAL PREBENT KEY WIDTH: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 1005 OR STEEL COMP 1006 OR STEEL COMP 1008 OR 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 1527 OR STEEL COMP 1029 OR STEEL COMP 1030 OR STEEL COMP 1031 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
STYLE DESIGNATOR: KEY
•
MATERIAL THICKNESS: 0.094 INCHES NOMINAL IN
•
INTERNAL PREBENT KEY WIDTH: 0.313 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN
•
INTERNAL PREBENT KEY LENGTH: 0.250 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 5.000 INCHES MINIMUM AND 5.045 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
EXTERNAL PREBENT KEY WIDTH0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1005 OR STEEL COMP 1006 OR STEEL COMP 1008 OR 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 1527 OR STEEL COMP 1029 OR STEEL COMP 1030 OR STEEL COMP 1031 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATORKEY
MATERIAL THICKNESS0.094 INCHES NOMINAL IN
INTERNAL PREBENT KEY WIDTH0.313 INCHES MINIMUM AND 0.353 INCHES MAXIMUM IN
INTERNAL PREBENT KEY LENGTH0.250 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
OUTSIDE DIAMETER5.000 INCHES MINIMUM AND 5.045 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS5.703 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY19
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
5310000085904Interchangeable
interchangeable cross-reference
interchangeable
MILW21338Interchangeable
interchangeable cross-reference
interchangeable
MS19069A15Interchangeable
interchangeable cross-reference
interchangeable
512B128-13Interchangeable
interchangeable cross-reference
interchangeable
2048548PC14Interchangeable
interchangeable cross-reference
interchangeable
10-50949-14Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 771026P6?
771026P6 is a WASHER,KEY.
What parts can replace 771026P6?
There are 24 known substitutes for 771026P6: 5310000085904, MILW21338, MS19069A15 and 21 more. Substitute compatibility should be verified for your specific system.
Is 771026P6 still available?
771026P6 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026