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26H78 — KEY,WOODRUFF

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

26H78: KEY,WOODRUFF.

The KEY,WOODRUFF is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8630 OVERALL, thickness: 0.2500 INCHES MINIMUM AND 0.2510 INCHES MAXIMUM IN, key_height: 0.308 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN, circle_diameter: 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL, special_features: OPTIONAL FLAT BOTTOM. This part is cataloged in the U.S.

Government catalog under NSN 5315-01-202-2867, 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
26H78
NSN: 5315-01-202-2867
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 75160 — DEERE & CO (USA)
SPECIFICATIONS
materialSTEEL COMP 8630 OVERALL
thickness0.2500 INCHES MINIMUM AND 0.2510 INCHES MAXIMUM IN
key_height0.308 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
circle_diameter0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
special_featuresOPTIONAL FLAT BOTTOM
style_designatorROUND BOTTOM
starting_edge_shapeROUND
key_size_designationWOODRUFF 91
starting_edge_radius0.020 INCHES NOMINAL IN
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-01-202-2867
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 26H78 · 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
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
STARTING EDGE SHAPE: ROUND
•
STYLE DESIGNATOR: ROUND BOTTOM
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CIRCLE DIAMETER: 0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
•
KEY HEIGHT: 0.308 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
•
KEY SIZE DESIGNATION: WOODRUFF 91
•
STARTING EDGE RADIUS: 0.020 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
STARTING EDGE SHAPEROUND
STYLE DESIGNATORROUND BOTTOM
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CIRCLE DIAMETER0.740 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
KEY HEIGHT0.308 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
KEY SIZE DESIGNATIONWOODRUFF 91
STARTING EDGE RADIUS0.020 INCHES NOMINAL IN
SPECIAL FEATURESOPTIONAL FLAT BOTTOM
MATERIALSTEEL COMP 8630 OVERALL
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 26H78?
26H78 is a KEY,WOODRUFF.
What is the NSN for 26H78?
26H78 is cataloged in the U.S. Government catalog under NSN 5315-01-202-2867. This indicates validated use in U.S. government and defense supply chains.
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