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43770 ✓ 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 IMPELLER,FAN,AXIAL is a the manufacturer thermal management component critical for maintaining optimal operating temperatures in enterprise hardware. Key specifications include end_item_identification: VT12-DIESEL ENGINE SEA WATER PUMP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-021-8217, 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
43770
NSN: 5315-00-021-8217
FSC: 5315
CAGE: 13002 — GOODRICH CORPORATION DIV ADVANCED STRUCTURES LANDING SYSTEMS (USA)
SPECIFICATIONS
end_item_identificationVT12-DIESEL ENGINE SEA WATER PUMP
NSN5315-00-021-8217
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 43770 · 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
•
KEY SIZE DESIGNATION: WOODRUFF 61
•
STARTING EDGE SHAPE: ROUND
•
HARDNESS RATING: 10.0 ROCKWELL C MINIMUM OVERALL
•
KEY HEIGHT: 0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
THICKNESS: 0.187 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
•
CIRCLE DIAMETER: 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: ROUND BOTTOM
TYPICAL APPLICATIONS
  • Server thermal management and cooling
  • Hot-swap fan replacement in production environments
  • Redundant cooling for high-availability systems
TECHNICAL CHARACTERISTICS (FLIS)
KEY SIZE DESIGNATIONWOODRUFF 61
STARTING EDGE SHAPEROUND
HARDNESS RATING10.0 ROCKWELL C MINIMUM OVERALL
KEY HEIGHT0.245 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
THICKNESS0.187 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
CIRCLE DIAMETER0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORROUND BOTTOM
MATERIALSTEEL COMP 1035 OVERALL
STARTING EDGE RADIUS0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
5315000431787Interchangeable
interchangeable cross-reference
interchangeable
218217Interchangeable
interchangeable cross-reference
interchangeable
GA4927Interchangeable
interchangeable cross-reference
interchangeable
2182-4AInterchangeable
interchangeable cross-reference
interchangeable
312585Interchangeable
interchangeable cross-reference
interchangeable
97-180-8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 43770?
43770 is a IMPELLER,FAN,AXIAL.
What parts can replace 43770?
There are 11 known substitutes for 43770: 5315000431787, 218217, GA4927 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 43770?
43770 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-021-8217. 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