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10-1850-500 ITEM 13 — Technical Data Sheet

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— · 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 WASHER,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OR STEEL COMP 316 OVERALL, hole_diameter: 0.168 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN, hardness_rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM, outside_diameter: 0.296 INCHES MAXIMUM IN, special_features: NAVAIR (USN/USMC AVIATION (AIR TRAFFIC CONTROL)) REFER TO OPNAVINST 3721.5M., style_designator: SPLIT HELICAL-RIGHT HAND. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-933-8119, 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
10-1850-500 ITEM 13
NSN: 5310-00-933-8119
FSC: 5310
CAGE: 28199 — L3 TECHNOLOGIES, INC. (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OR STEEL COMP 316 OVERALL
hole_diameter0.168 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
hardness_rating35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
outside_diameter0.296 INCHES MAXIMUM IN
special_featuresNAVAIR (USN/USMC AVIATION (AIR TRAFFIC CONTROL)) REFER TO OPNAVINST 3721.5M.
style_designatorSPLIT HELICAL-RIGHT HAND
surface_treatmentPASSIVATE OVERALL
material_thickness0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
nondefinitive_spec/std_data2 STYLE AND C CLASS
surface_treatment_document_and_classificationAMS-QQ-PP-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-933-8119
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10-1850-500 ITEM 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
•
NONDEFINITIVE SPEC/STD DATA: 2 STYLE AND C CLASS
•
STYLE DESIGNATOR: SPLIT HELICAL-RIGHT HAND
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL COMP 304 OR STEEL COMP 316 OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS-QQ-PP-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.296 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
NONDEFINITIVE SPEC/STD DATA2 STYLE AND C CLASS
STYLE DESIGNATORSPLIT HELICAL-RIGHT HAND
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL COMP 304 OR STEEL COMP 316 OVERALL
SPECIAL FEATURESNAVAIR (USN/USMC AVIATION (AIR TRAFFIC CONTROL)) REFER TO OPNAVINST 3721.5M.
END ITEM IDENTIFICATIONMRAP RG-31/ROUTE CLEARANCE VEHICLE; RG-33; MRAP BUFFALO MK2A2; MRAP - COUGAR CAT1 A1; MRAP - M-ATV WITH CS13 POP AND SNE; ARMORED MULTI-PURPOSE VEHICLE (AMPV); MULTIPLE LAUNCH ROCKET SYSTEM (MLRS); A4 BRADLEY FIGHTING VEHICLE; A3 BRADLEY FIGHTING VEHICLE; LOGISTICS SUPPORT VESSEL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS-QQ-PP-35 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
OUTSIDE DIAMETER0.296 INCHES MAXIMUM IN
HARDNESS RATING35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
MATERIAL THICKNESS0.040 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
405132503InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
116125InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
191775InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
429067InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
98210ADXInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
61724020008InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10-1850-500 ITEM 13?
10-1850-500 ITEM 13 is a WASHER,LOCK.
What parts can replace 10-1850-500 ITEM 13?
There are 27 known substitutes for 10-1850-500 ITEM 13: 405132503, 116125, 191775 and 24 more. Substitute compatibility should be verified for your specific system.
Is 10-1850-500 ITEM 13 still available?
10-1850-500 ITEM 13 is currently cancelled.
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Last verified: September 2026