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PartsTable / COMPONENT / E-2549 ITEM 6
E-2549 ITEM 6 ✓ 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: NICKEL ALLOY K-500 OR NICKEL ALLOY R-405 OVERALL, thickness: 0.156 INCHES NOMINAL IN, circle_diameter: 1.625 INCHES NOMINAL IN, key_size_designation: NONSTANDARD SIZE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-301-5239, 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
E-2549 ITEM 6
NSN: 5315-01-301-5239
FSC: 5315
CAGE: 07524 — DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER (USA)
SPECIFICATIONS
materialNICKEL ALLOY K-500 OR NICKEL ALLOY R-405 OVERALL
thickness0.156 INCHES NOMINAL IN
circle_diameter1.625 INCHES NOMINAL IN
key_size_designationNONSTANDARD SIZE
NSN5315-01-301-5239
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: E-2549 ITEM 6 · 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
•
CIRCLE DIAMETER: 1.625 INCHES NOMINAL IN
•
MATERIAL: NICKEL ALLOY K-500 OR NICKEL ALLOY R-405 OVERALL
•
KEY SIZE DESIGNATION: NONSTANDARD SIZE
•
THICKNESS: 0.156 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CIRCLE DIAMETER1.625 INCHES NOMINAL IN
MATERIALNICKEL ALLOY K-500 OR NICKEL ALLOY R-405 OVERALL
KEY SIZE DESIGNATIONNONSTANDARD SIZE
THICKNESS0.156 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
90917-1Interchangeable
interchangeable cross-reference
interchangeable
90917Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is E-2549 ITEM 6?
E-2549 ITEM 6 is a KEY,WOODRUFF.
What parts can replace E-2549 ITEM 6?
There are 2 known substitutes for E-2549 ITEM 6: 90917-1, 90917. Substitute compatibility should be verified for your specific system.
What is the NSN for E-2549 ITEM 6?
E-2549 ITEM 6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-301-5239. 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