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Technical Data Sheet
PartsTable / COMPONENT / 5166771
5166771 ✓ 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 HOUSING ASSEMBLY,AI is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, prong_length: 3.250 INCHES MINIMUM AND 3.560 INCHES MAXIMUM IN, opening_width: 0.310 INCHES NOMINAL IN, style_designator: LOCK, wire_stock_diameter: 0.177 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-017-9228, 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
5166771
NSN: 5315-00-017-9228
FSC: 5315
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
prong_length3.250 INCHES MINIMUM AND 3.560 INCHES MAXIMUM IN
opening_width0.310 INCHES NOMINAL IN
style_designatorLOCK
wire_stock_diameter0.177 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
NSN5315-00-017-9228
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5166771 · 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
•
PRONG LENGTH: 2.384 INCHES NOMINAL IN
•
STYLE DESIGNATOR: LOCK
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
•
WIRE STOCK DIAMETER: 0.178 INCHES NOMINAL IN
•
OPENING WIDTH: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
PRONG LENGTH2.384 INCHES NOMINAL IN
END ITEM IDENTIFICATIONHEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS)
STYLE DESIGNATORLOCK
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
WIRE STOCK DIAMETER0.178 INCHES NOMINAL IN
OPENING WIDTH1.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
5166771Interchangeable
interchangeable cross-reference
interchangeable
5166773Interchangeable
interchangeable cross-reference
interchangeable
516671Interchangeable
interchangeable cross-reference
interchangeable
JA1N056S104AZInterchangeable
interchangeable cross-reference
interchangeable
52-0021Interchangeable
interchangeable cross-reference
interchangeable
044-015Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5166771?
5166771 is a HOUSING ASSEMBLY,AI.
What parts can replace 5166771?
There are 19 known substitutes for 5166771: 5166771, 5166773, 516671 and 16 more. Substitute compatibility should be verified for your specific system.
Is 5166771 still available?
5166771 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026