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X43-3 — NONMETALLIC SPECIAL SHAPED SECTI

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

X43-3: NONMETALLIC SPECIAL SHAPED SECTI.

NONMETALLIC SPECIAL SHAPED SECTI. Key specifications include material: RUBBER CHLOROPRENE CLASS CR, thickness: 0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN, key_height: 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, first_diameter: 0.187 INCHES NOMINAL IN, circle_diameter: 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-616-5526, 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
X43-3
NSN: 5315-00-616-5526
NIINs: 006165526, 009016760
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 55469 — ESSEX INDUSTRIES, INC. DBA ESSEX INDUSTRIES (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR
thickness0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN
key_height0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
first_diameter0.187 INCHES NOMINAL IN
circle_diameter0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
style_designatorROUND BOTTOM
starting_edge_shapeSTRAIGHT
key_size_designationWOODRUFF 5
first_slot/groove_depth0.125 INCHES NOMINAL IN
first_slot/groove_width0.031 INCHES NOMINAL IN
environmental_protectionLOW TEMPERATURE AND OZONE RESISTANT AND PETROLEUM RESISTANT AND WEATHER RESISTANT
NSN5315-00-616-5526
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: X43-3 · 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: STRAIGHT
•
STYLE DESIGNATOR: ROUND BOTTOM
•
CIRCLE DIAMETER: 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
KEY HEIGHT: 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
KEY SIZE DESIGNATION: WOODRUFF 5
•
MATERIAL: STEEL COMP 2330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
•
THICKNESS: 0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
STARTING EDGE SHAPESTRAIGHT
STYLE DESIGNATORROUND BOTTOM
CIRCLE DIAMETER0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
KEY HEIGHT0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
KEY SIZE DESIGNATIONWOODRUFF 5
MATERIALSTEEL COMP 2330 OR STEEL COMP 4130 OR STEEL COMP 8630 OVERALL
THICKNESS0.1250 INCHES MINIMUM AND 0.1260 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 8
70005Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
103905Reference document
Same NSN cross-reference
Reference document — Secondary reference
MPX43-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
X504Reference document
Same NSN cross-reference
Reference document — Secondary reference
5315PL2173644Reference document
Same NSN cross-reference
Reference document — Informative reference only
5315006165526Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is X43-3?
X43-3 is a NONMETALLIC SPECIAL SHAPED SECTI.
What parts can replace X43-3?
There are 8 known substitutes for X43-3: 70005, 103905, MPX43-3 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for X43-3?
X43-3 is cataloged in the U.S. Government catalog under NSN 5315-00-616-5526. This indicates validated use in U.S. government and defense supply chains.
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