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Technical Data Sheet
2D173 ✓ 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 NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_style: SPRING END,PLAIN BOTH ENDS, load_rating: 1.000 POUNDS MINIMUM AND 1.250 POUNDS MAXIMUM LBS, inside_diameter: 0.813 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN, special_features: BOTH ENDS INDENTED 1/8 IN. FROM OD TO CENTER OF SPRING IN, style_designator: CYLINDRICAL.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-054-2354, 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
2D173
NSN: 5310-00-054-2354
FSC: 5310
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,PLAIN BOTH ENDS
load_rating1.000 POUNDS MINIMUM AND 1.250 POUNDS MAXIMUM LBS
inside_diameter0.813 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN
special_featuresBOTH ENDS INDENTED 1/8 IN. FROM OD TO CENTER OF SPRING IN
style_designatorCYLINDRICAL
surface_treatmentTIN OVERALL
spring_free_length2.562 INCHES MINIMUM AND 2.688 INCHES MAXIMUM IN
spring_solid_length0.625 INCHES MAXIMUM IN
coil_helix_directionRIGHT-HAND OR LEFT-HAND
spring_length_under_load1.750 INCHES NOMINAL IN
spring_free_outside_diameter0.906 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
NSN5310-00-054-2354
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2D173 · 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
THREAD CLASS: 3B
DRILLED HOLE DIAMETER: 0.070 INCHES NOMINAL IN
HOLE CONFIGURATION STYLE: CONFIGURATION H
THREAD SERIES: UN
THREAD QUANTITY PER INCH: 12
NOMINAL THREAD SIZE: 1.062 INCHES IN
BEARING SURFACE TYPE: CHAMFERED
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B
DRILLED HOLE DIAMETER0.070 INCHES NOMINAL IN
HOLE CONFIGURATION STYLECONFIGURATION H
THREAD SERIESUN
THREAD QUANTITY PER INCH12
NOMINAL THREAD SIZE1.062 INCHES IN
BEARING SURFACE TYPECHAMFERED
NUT STYLEHEXAGON
NUT HEIGHT0.406 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
5186723Interchangeable
interchangeable cross-reference
interchangeable
1760-323Interchangeable
interchangeable cross-reference
interchangeable
38466Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2D173?
2D173 is a NUT,PLAIN,HEXAGON.
What parts can replace 2D173?
There are 3 known substitutes for 2D173: 5186723, 1760-323, 38466. Substitute compatibility should be verified for your specific system.
What is the NSN for 2D173?
2D173 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-054-2354. This indicates validated use in U.S. government and defense supply chains.
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