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501-370100-00 — NUT,PLAIN,ASSEMBLED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

501-370100-00: NUT,PLAIN,ASSEMBLED WASHER.

The NUT,PLAIN,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include nut_style: CONICAL RIM, nut_height: 0.377 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), overall_height: 0.368 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-361-7086, 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
501-370100-00
NSN: 5310-01-361-7086
FSC: 5310 — Nuts and Washers
CAGE: 78189 — ITW SHAKEPROOF AUTOMOTIVE PRODUCTS (USA)
SPECIFICATIONS
materialSTEEL COMP 1050 OR STEEL COMP 1053 OR STEEL COMP 1055 OR STEEL COMP 1059 OR STEEL COMP 1060 OR STEEL COMP 1064 OR STEEL COMP 1551 OR STEEL COMP 1552 OR STEEL COMP 1561 WASHER
nut_styleCONICAL RIM
nut_height0.377 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
overall_height0.368 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
width_across_flats0.562 INCHES NOMINAL IN
nominal_thread_size0.380 INCHES IN
washer_outside_diameter0.650 INCHES NOMINAL IN
thread_quantity_per_inch16
NSN5310-01-361-7086
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 501-370100-00 · 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
•
WASHER OUTSIDE DIAMETER: 0.650 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.562 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 1, FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633 SC2 TY 2 ASSN STD 2ND TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.380 INCHES IN
•
NUT HEIGHT: 0.377 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.368 INCHES NOMINAL IN
WASHER OUTSIDE DIAMETER0.650 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.562 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 1, FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633 SC2 TY 2 ASSN STD 2ND TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.380 INCHES IN
NUT HEIGHT0.377 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
NUT STYLECONICAL RIM
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
1676AS108-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 501-370100-00?
501-370100-00 is a NUT,PLAIN,ASSEMBLED WASHER.
What parts can replace 501-370100-00?
There is 1 known substitute for 501-370100-00: 1676AS108-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 501-370100-00?
501-370100-00 is cataloged in the U.S. Government catalog under NSN 5310-01-361-7086. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.