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PartsTable / COMPONENT / 805057
805057 ✓ 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 material: STEEL COMP 1008 OVERALL, hole_diameter: 0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN, hardness_rating: 52.0 ROCKWELL B MINIMUM OR 64.0 ROCKWELL B MAXIMUM, outside_diameter: 0.672 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN, style_designator: KEY, surface_treatment: CADMIUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-010-3320, 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
805057
NSN: 5310-00-010-3320
FSC: 5310
CAGE: 02280 — AMERICAN HOIST AND DERRICK CO
SPECIFICATIONS
materialSTEEL COMP 1008 OVERALL
hole_diameter0.390 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
hardness_rating52.0 ROCKWELL B MINIMUM OR 64.0 ROCKWELL B MAXIMUM
outside_diameter0.672 INCHES MINIMUM AND 0.703 INCHES MAXIMUM IN
style_designatorKEY
surface_treatmentCADMIUM OVERALL
material_thickness0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM IN
external_prebent_key_length0.203 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
external_straight_key_width0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
external_straight_key_length0.141 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
overall_distance_including_keys0.797 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-010-3320
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 805057 · 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
•
MATERIAL THICKNESS: 0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: 2 STYLE AND A CLASS
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
HOLE DIAMETER: 0.318 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.586 INCHES MAXIMUM IN
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.078 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA2 STYLE AND A CLASS
MATERIALSTEEL CORROSION RESISTING OVERALL
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
HOLE DIAMETER0.318 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.586 INCHES MAXIMUM IN
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
316-1-2PInterchangeable
interchangeable cross-reference
interchangeable
615AInterchangeable
interchangeable cross-reference
interchangeable
40049Interchangeable
interchangeable cross-reference
interchangeable
X528Interchangeable
interchangeable cross-reference
interchangeable
M22520/10-104Interchangeable
interchangeable cross-reference
interchangeable
MIL-C-22520/10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 805057?
805057 is a WASHER,KEY.
What parts can replace 805057?
There are 28 known substitutes for 805057: 316-1-2P, 615A, 40049 and 25 more. Substitute compatibility should be verified for your specific system.
Is 805057 still available?
805057 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