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Technical Data Sheet
PartsTable / COMPONENT / 193920
193920 ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321 OVERALL, hole_diameter: 0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN, outside_diameter: 0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN, split_key_length: 0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-209-3767, 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
193920
NSN: 5310-00-209-3767
FSC: 5310
CAGE: 31633 — ALINABAL HOLDINGS CORPORATION DIV ENGINEERED PRODUCTS GROUP (USA)
SPECIFICATIONS
materialSTEEL COMP 321 OVERALL
hole_diameter0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN
outside_diameter0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN
split_key_length0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
external_key_quantity3
external_prebent_key_angle28.0 DEGREES MINIMUM AND 32.0 DEGREES MAXIMUM
external_prebent_key_width0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
external_tapered_key_width0.290 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
angle_between_external_keys58.0 DEGREES MINIMUM AND 62.0 DEGREES MAXIMUM
external_prebent_key_length0.105 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
NSN5310-00-209-3767
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 193920 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 321 OVERALL
•
STYLE DESIGNATOR: KEY
•
OUTSIDE DIAMETER: 0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 0.860 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN
•
EXTERNAL KEY QUANTITY: 3
•
SPLIT KEY LENGTH: 0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 321 OVERALL
STYLE DESIGNATORKEY
OUTSIDE DIAMETER0.520 INCHES MINIMUM AND 0.540 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS0.860 INCHES MINIMUM AND 0.900 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY3
SPLIT KEY LENGTH0.160 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
MATERIAL THICKNESS0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
HOLE DIAMETER0.315 INCHES MINIMUM AND 0.325 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY WIDTH0.135 INCHES MINIMUM AND 0.145 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
193920Interchangeable
interchangeable cross-reference
interchangeable
31200Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 193920?
193920 is a GASKET.
What parts can replace 193920?
There are 2 known substitutes for 193920: 193920, 31200. Substitute compatibility should be verified for your specific system.
What is the NSN for 193920?
193920 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-209-3767. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026