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Technical Data Sheet
PartsTable / COMPONENT / 217838
217838 ✓ 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 RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include end_item_identification: PACER DAWN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-785-6717, 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
217838
NSN: 5315-00-785-6717
FSC: 5315
CAGE: K4413 — EATON LIMITED (GBR)
SPECIFICATIONS
end_item_identificationPACER DAWN
NSN5315-00-785-6717
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 217838 · 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
•
STYLE DESIGNATOR: GROOVE
•
PIN HEAD DIAMETER: 1.028 INCHES NOMINAL IN
•
HEIGHT: 0.070 INCHES NOMINAL IN
•
SURFACE FINISH: 16.0 MICROINCHES GRIP
•
HEAD STYLE: FLAT
•
UNDER HEAD LENGTH: 2.085 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 4140 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORGROOVE
PIN HEAD DIAMETER1.028 INCHES NOMINAL IN
HEIGHT0.070 INCHES NOMINAL IN
SURFACE FINISH16.0 MICROINCHES GRIP
SPECIAL FEATURES0.250 IN. DIA HOLE DRILLED THRU SHANK LONGITUDINAL TO AXIS TAPPED 1/4-20 UNC 0.530 IN. DEEP AT HD END,0.080 IN. DIA HOLE DRILLED IN SHANK 0.827 IN. FROM BEARING SURFACE OF HD IN
HEAD STYLEFLAT
UNDER HEAD LENGTH2.085 INCHES NOMINAL IN
MATERIALSTEEL COMP 4140 OVERALL
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL
FIRST END TAPER ANGLE45.0 DEGREES NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
217838Interchangeable
interchangeable cross-reference
interchangeable
12922-2-4Interchangeable
interchangeable cross-reference
interchangeable
2237-2-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 217838?
217838 is a RESTRICTOR,FLUID FLOW.
What parts can replace 217838?
There are 3 known substitutes for 217838: 217838, 12922-2-4, 2237-2-4. Substitute compatibility should be verified for your specific system.
What is the NSN for 217838?
217838 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-785-6717. 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