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Technical Data Sheet

73931-13 — Technical Data Sheet

✓ 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,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON LOCKING INSERT, nut_style: HEXAGON, nut_height: 0.329 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, thread_class: 2B. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-984-3807, 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
73931-13
NSN: 5310-00-984-3807
FSC: 5310
CAGE: 95097 — LITTLE GIANT CRANE AND SHOVEL INC (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON LOCKING INSERT
nut_styleHEXAGON
nut_height0.329 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
thread_class2B
thread_seriesUNF
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OVERALL EXCEPT INSERT
width_across_flats0.489 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN
nominal_thread_size0.312 INCHES IN
NSN5310-00-984-3807
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 73931-13 · 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
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
•
LUBRICATION: DRY FILM LUBRICANT
•
THREAD SERIES: UNF
•
THREAD QUANTITY PER INCH: 24
•
THREAD CLASS: 2B
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
BEARING SURFACE FINISH: 125.0 MICROINCHES
TECHNICAL CHARACTERISTICS
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
LUBRICATIONDRY FILM LUBRICANT
THREAD SERIESUNF
THREAD QUANTITY PER INCH24
THREAD CLASS2B
NOMINAL THREAD SIZE0.312 INCHES IN
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
BEARING SURFACE FINISH125.0 MICROINCHES
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL EXCEPT INSERT
MATERIALSTEEL NUT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
GA50273L11InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
015745InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
503P536InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
26416InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
10323InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
400LXInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 73931-13?
73931-13 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 73931-13?
There are 27 known substitutes for 73931-13: GA50273L11, 015745, 503P536 and 24 more. Substitute compatibility should be verified for your specific system.
Is 73931-13 still available?
73931-13 is currently cancelled.
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