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Technical Data Sheet
PartsTable / COMPONENT / MS35756-27
MS35756-27 ✓ 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 KEY,WOODRUFF is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 2330 OVERALL, thickness: 0.3750 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN, key_height: 0.589 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN, circle_diameter: 1.365 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL, style_designator: ROUND BOTTOM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-011-7995, 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
MS35756-27
NSN: 5315-00-011-7995
FSC: 5315
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 2330 OVERALL
thickness0.3750 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN
key_height0.589 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN
circle_diameter1.365 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
style_designatorROUND BOTTOM
starting_edge_shapeROUND
key_size_designationWOODRUFF F
starting_edge_radius0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OR 66 FED STD ALL MATERIAL RESPONSES OVERALL
NSN5315-00-011-7995
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS35756-27 · 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
•
THICKNESS: 0.3750 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN
•
CIRCLE DIAMETER: 1.365 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
•
STARTING EDGE RADIUS: 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
•
KEY SIZE DESIGNATION: WOODRUFF F
•
MATERIAL: STEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 2330 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OR 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
STYLE DESIGNATOR: ROUND BOTTOM
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.3750 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM IN
CIRCLE DIAMETER1.365 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN
STARTING EDGE RADIUS0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
KEY SIZE DESIGNATIONWOODRUFF F
MATERIALSTEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 2330 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OR 66 FED STD ALL MATERIAL RESPONSES OVERALL
STYLE DESIGNATORROUND BOTTOM
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
STARTING EDGE SHAPEROUND
KEY HEIGHT0.589 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
W20Interchangeable
interchangeable cross-reference
interchangeable
10A3779PC7Interchangeable
interchangeable cross-reference
interchangeable
5310002474196Interchangeable
interchangeable cross-reference
interchangeable
0325286Interchangeable
interchangeable cross-reference
interchangeable
49034HInterchangeable
interchangeable cross-reference
interchangeable
P20Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS35756-27?
MS35756-27 is a KEY,WOODRUFF.
What parts can replace MS35756-27?
There are 12 known substitutes for MS35756-27: W20, 10A3779PC7, 5310002474196 and 9 more. Substitute compatibility should be verified for your specific system.
Is MS35756-27 still available?
MS35756-27 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