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186021 — INDICATOR,DISCHARGE

✓ Government record, cited
Thule · NUT WASHER
PRODUCT OVERVIEW

186021: INDICATOR,DISCHARGE.

Custom fit kit for mounting a Thule roof rack to vehicles with flush railings. Key specifications include diameter: 0.375 INCHES NOMINAL IN, material: STEEL COMP 304 SHEATH, overall_length: 4.000 INCHES NOMINAL IN, shear_strength: 176000 DOUBLE POUND, hardness_rating: 46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL, style_designator: SLOTTED. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-958-9975, 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
186021
NSN: 5315-00-958-9975
NIINs: 009589975, 014996888, 016244190
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 29510 — KOMATSU AMERICAN INTL CO (USA)
SPECIFICATIONS
diameter0.375 INCHES NOMINAL IN
materialSTEEL COMP 304 SHEATH
overall_length4.000 INCHES NOMINAL IN
shear_strength176000 DOUBLE POUND
hardness_rating46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSLOTTED
material_thickness0.077 INCHES NOMINAL IN
end_item_identificationHEATER DUCT
maximum_wattage_rating_in_watts84.00 SINGLE VOLTAGE
voltage_in_volts_and_current_type87.00 AC SINGLE VOLTAGE
material_document_and_classificationAMS 5120 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5121 ASSN STD 2ND MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyELEMENT
NSN5315-00-958-9975
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 186021 · Thule ⚠ 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
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: SLOTTED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5120 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5121 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.375 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.077 INCHES NOMINAL IN
•
SHEAR STRENGTH: 176000 DOUBLE POUND
•
MATERIAL: STEEL COMP 1074 OR STEEL COMP 1095 OVERALL
TECHNICAL CHARACTERISTICS
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORSLOTTED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5120 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5121 ASSN STD 2ND MATERIAL RESPONSE OVERALL
DIAMETER0.375 INCHES NOMINAL IN
OVERALL LENGTH4.000 INCHES NOMINAL IN
MATERIAL THICKNESS0.077 INCHES NOMINAL IN
SHEAR STRENGTH176000 DOUBLE POUND
MATERIALSTEEL COMP 1074 OR STEEL COMP 1095 OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
59-077-375-4000Reference document
Same NSN cross-reference
Reference document — Secondary reference
138-186Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 186021?
186021 is a INDICATOR,DISCHARGE manufactured by Thule.
What parts can replace 186021?
There are 2 known substitutes for 186021: 59-077-375-4000, 138-186. Substitute compatibility should be verified for your specific system.
What is the NSN for 186021?
186021 is cataloged in the U.S. Government catalog under NSN 5315-00-958-9975. This indicates validated use in U.S. government and defense supply chains.
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