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Technical Data Sheet
PartsTable / COMPONENT / 117977
117977 ✓ 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 1035 OVERALL, thickness: 0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN, key_height: 0.433 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN, circle_diameter: 0.990 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN, hardness_rating: 10.0 ROCKWELL C MINIMUM OVERALL, style_designator: ROUND BOTTOM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-011-7977, 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
117977
NSN: 5315-00-011-7977
FSC: 5315
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 1035 OVERALL
thickness0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN
key_height0.433 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
circle_diameter0.990 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
hardness_rating10.0 ROCKWELL C MINIMUM OVERALL
style_designatorROUND BOTTOM
starting_edge_shapeROUND
key_size_designationWOODRUFF B
starting_edge_radius0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-011-7977
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 117977 · 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
•
STARTING EDGE RADIUS: 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
•
CIRCLE DIAMETER: 0.990 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
•
STARTING EDGE SHAPE: ROUND
•
KEY SIZE DESIGNATION: WOODRUFF B
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THICKNESS: 0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: ROUND BOTTOM
•
KEY HEIGHT: 0.433 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STARTING EDGE RADIUS0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
CIRCLE DIAMETER0.990 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
STARTING EDGE SHAPEROUND
KEY SIZE DESIGNATIONWOODRUFF B
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THICKNESS0.3125 INCHES MINIMUM AND 0.3135 INCHES MAXIMUM IN
STYLE DESIGNATORROUND BOTTOM
KEY HEIGHT0.433 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1035 OVERALL
HARDNESS RATING10.0 ROCKWELL C MINIMUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
124554Interchangeable
interchangeable cross-reference
interchangeable
1ES12766Interchangeable
interchangeable cross-reference
interchangeable
89-210-2Interchangeable
interchangeable cross-reference
interchangeable
1096Interchangeable
interchangeable cross-reference
interchangeable
551 SIZE 5Interchangeable
Brush,artist's
interchangeable
8020-6298Interchangeable
Brush,artist's
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 117977?
117977 is a KEY,WOODRUFF.
What parts can replace 117977?
There are 19 known substitutes for 117977: 124554, 1ES12766, 89-210-2 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 117977?
117977 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-011-7977. 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: July 2026