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PartsTable / COMPONENT / 1056H133
1056H133 ✓ 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,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN, outside_diameter: 0.458 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN, style_designator: COUNTERSINK EXTERNAL TEETH, countersink_angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM, surface_treatment: CADMIUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-167-0862, 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
1056H133
NSN: 5310-00-167-0862
FSC: 5310
CAGE: 99872 — ENTRON INDUSTRIES LIMITED PARTNERSHIP DBA ENTRON INDUSTRIES PROPERTY DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
outside_diameter0.458 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN
style_designatorCOUNTERSINK EXTERNAL TEETH
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
surface_treatmentCADMIUM OVERALL
material_thickness0.020 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN
NSN5310-00-167-0862
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1056H133 · 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: STEEL OVERALL
•
SURFACE TREATMENT: CADMIUM OVERALL
•
HOLE DIAMETER: 0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.020 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.458 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN
•
COUNTERSINK ANGLE: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
•
STYLE DESIGNATOR: COUNTERSINK EXTERNAL TEETH
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
SURFACE TREATMENTCADMIUM OVERALL
HOLE DIAMETER0.256 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
MATERIAL THICKNESS0.020 INCHES MINIMUM AND 0.024 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.458 INCHES MINIMUM AND 0.478 INCHES MAXIMUM IN
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
STYLE DESIGNATORCOUNTERSINK EXTERNAL TEETH
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
Q0008351Interchangeable
interchangeable cross-reference
interchangeable
306471Interchangeable
interchangeable cross-reference
interchangeable
138606Interchangeable
interchangeable cross-reference
interchangeable
AN936C416Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1056H133?
1056H133 is a WASHER,LOCK.
What parts can replace 1056H133?
There are 4 known substitutes for 1056H133: Q0008351, 306471, 138606 and 1 more. Substitute compatibility should be verified for your specific system.
Is 1056H133 still available?
1056H133 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