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MIL-W-45595/4 — 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,SADDLE is a the manufacturer industrial component. Key specifications include radius: 0.078 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN, hole_diameter: 0.151 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN, overall_width: 0.422 INCHES NOMINAL IN, overall_height: 0.078 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN, overall_length: 0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN, special_features: MATERIAL THICKNESS 0.015 IN. MIN 0.025 IN.

MAX,END-SQUARE IN. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-273-9873, 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
MIL-W-45595/4
NSN: 5310-01-273-9873
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
radius0.078 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
hole_diameter0.151 INCHES MINIMUM AND 0.183 INCHES MAXIMUM IN
overall_width0.422 INCHES NOMINAL IN
overall_height0.078 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
overall_length0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
special_featuresMATERIAL THICKNESS 0.015 IN. MIN 0.025 IN. MAX,END-SQUARE IN
style_designatorSADDLE
surface_treatmentCADMIUM AND CHROMATE OVERALL
material_document_and_classificationASTM A109 ASSN STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-273-9873
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MIL-W-45595/4 · 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
•
RADIUS: 0.078 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: SADDLE
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A109 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
MATERIAL: STEEL COMP 1008 OR STEEL COMP 1009 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 OVERALL
•
HOLE DIAMETER: 0.124 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
RADIUS0.078 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORSADDLE
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A109 ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 1008 OR STEEL COMP 1009 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 OVERALL
HOLE DIAMETER0.124 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
OVERALL WIDTH0.422 INCHES NOMINAL IN
OVERALL LENGTH0.390 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN
SPECIAL FEATURESMATERIAL THICKNESS 0.015 IN. MIN 0.025 IN.MAX,END-SQUARE IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
273.768 580Interchangeable
interchangeable cross-reference
interchangeable
14500030-002Interchangeable
interchangeable cross-reference
interchangeable
81349Interchangeable
interchangeable cross-reference
interchangeable
62948-97Interchangeable
interchangeable cross-reference
interchangeable
400-612-107Interchangeable
interchangeable cross-reference
interchangeable
159624Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-W-45595/4?
MIL-W-45595/4 is a WASHER,SADDLE.
What parts can replace MIL-W-45595/4?
There are 23 known substitutes for MIL-W-45595/4: 273.768 580, 14500030-002, 81349 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-W-45595/4?
MIL-W-45595/4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-273-9873. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026