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3064690 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

3064690: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.382 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN, hardness_rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM, outside_diameter: 0.678 INCHES MAXIMUM IN, style_designator: SPLIT HELICAL-RIGHT HAND, material_thickness: 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-011-0730, 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
3064690
NSN: 5310-00-011-0730
FSC: 5310 — Nuts and Washers
CAGE: 43952 — ENERGY SERVICES GROUP DIV OF COOPER INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.382 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
outside_diameter0.678 INCHES MAXIMUM IN
style_designatorSPLIT HELICAL-RIGHT HAND
material_thickness0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
nondefinitive_spec/std_data1 STYLE AND A CLASS
material_document_and_classificationFED STD 66,AISI C1060 THRU C1080 OR SAE 1060 THRU 1080 FED STD ALL MATERIAL RESPONSES OVERALL
NSN5310-00-011-0730
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3064690 · 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
•
HARDNESS RATING: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66,AISI C1060 THRU C1080 OR SAE 1060 THRU 1080 FED STD ALL MATERIAL RESPONSES OVERALL
•
OUTSIDE DIAMETER: 0.678 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: 1 STYLE AND A CLASS
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.382 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HARDNESS RATING45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66,AISI C1060 THRU C1080 OR SAE 1060 THRU 1080 FED STD ALL MATERIAL RESPONSES OVERALL
OUTSIDE DIAMETER0.678 INCHES MAXIMUM IN
MATERIAL THICKNESS0.070 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA1 STYLE AND A CLASS
MATERIALSTEEL OVERALL
HOLE DIAMETER0.382 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 9
H87-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
7435-64HReference document
Same NSN cross-reference
Reference document — Secondary reference
85392Reference document
Same NSN cross-reference
Reference document — Secondary reference
0910328Reference document
Same NSN cross-reference
Reference document — Secondary reference
N405P13C11Reference document
Same NSN cross-reference
Reference document — Secondary reference
20131Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3064690?
3064690 is a WASHER,LOCK.
What parts can replace 3064690?
There are 9 known substitutes for 3064690: H87-6, 7435-64H, 85392 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3064690?
3064690 is cataloged in the U.S. Government catalog under NSN 5310-00-011-0730. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.