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Technical Data Sheet
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879601-00 — Technical Data Sheet

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— · 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,FLAT is a the manufacturer industrial component. Key specifications include material: PLASTIC OVERALL, thickness: 0.125 INCHES NOMINAL IN, hole_diameter: 0.312 INCHES NOMINAL IN, hardness_rating: 71.0 ROCKWELL M MINIMUM AND 118.0 ROCKWELL M MAXIMUM, overall_diameter: 0.625 INCHES NOMINAL IN, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-240-0354, 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
879601-00
NSN: 5310-00-240-0354
FSC: 5310
CAGE: 32345 — DEFENSE REDUCTION AGENCY (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
thickness0.125 INCHES NOMINAL IN
hole_diameter0.312 INCHES NOMINAL IN
hardness_rating71.0 ROCKWELL M MINIMUM AND 118.0 ROCKWELL M MAXIMUM
overall_diameter0.625 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
minimum_tensile_strength8100 POUNDS PER SQUARE INCH LBS
cross-sectional_shape_styleRECTANGULAR
NSN5310-00-240-0354
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 879601-00 · 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
•
PERIPHERAL SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
CENTER HOLE SHAPE STYLE: ROUND
•
HARDNESS RATING: 71.0 ROCKWELL M MINIMUM AND 118.0 ROCKWELL M MAXIMUM
•
MATERIAL: PLASTIC OVERALL
•
MINIMUM TENSILE STRENGTH: 8100 POUNDS PER SQUARE INCH LBS
•
HOLE DIAMETER: 0.312 INCHES NOMINAL IN
•
OVERALL DIAMETER: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
PERIPHERAL SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
CENTER HOLE SHAPE STYLEROUND
HARDNESS RATING71.0 ROCKWELL M MINIMUM AND 118.0 ROCKWELL M MAXIMUM
MATERIALPLASTIC OVERALL
MINIMUM TENSILE STRENGTH8100 POUNDS PER SQUARE INCH LBS
HOLE DIAMETER0.312 INCHES NOMINAL IN
OVERALL DIAMETER0.625 INCHES NOMINAL IN
THICKNESS0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
50909InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
51010InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
CH-5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
267040InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 879601-00?
879601-00 is a WASHER,FLAT.
What parts can replace 879601-00?
There are 4 known substitutes for 879601-00: 50909, 51010, CH-5 and 1 more. Substitute compatibility should be verified for your specific system.
Is 879601-00 still available?
879601-00 is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: September 2026