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Technical Data Sheet
PartsTable / COMPONENT / 5327190
5327190 ✓ 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 WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 1.250 INCHES MINIMUM AND 1.250 INCHES MINIMUM AND 1.281 INCHES MAXIMUM1.281 INCHES MAXIMUM IN, outside_diameter: 1.922 INCHES MINIMUM AND 1.922 INCHES MINIMUM AND 1.953 INCHES MAXIMUM1.953 INCHES MAXIMUM IN, style_designator: KEYKEY, material_thickness: 0.047 INCHES MINIMUM AND 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM0.078 INCHES MAXIMUM IN, external_key_quantity: 1313. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-271-3179, 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
5327190
NSN: 5310-00-271-3179
FSC: 5310
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter1.250 INCHES MINIMUM AND 1.250 INCHES MINIMUM AND 1.281 INCHES MAXIMUM1.281 INCHES MAXIMUM IN
outside_diameter1.922 INCHES MINIMUM AND 1.922 INCHES MINIMUM AND 1.953 INCHES MAXIMUM1.953 INCHES MAXIMUM IN
style_designatorKEYKEY
material_thickness0.047 INCHES MINIMUM AND 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM0.078 INCHES MAXIMUM IN
external_key_quantity1313
external_straight_key_width0.297 INCHES MINIMUM AND 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM0.328 INCHES MAXIMUM IN
internal_straight_key_width0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
overall_distance_including_keys2.422 INCHES MINIMUM AND 2.422 INCHES MINIMUM AND 2.450 INCHES MAXIMUM2.450 INCHES MAXIMUM IN
distance_from_centerline_to_top_of_internal_key0.383 INCHES NOMINAL0.383 INCHES NOMINAL IN
NSN5310-00-271-3179
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5327190 · 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
•
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY: 0.383 INCHES NOMINAL0.383 INCHES NOMINAL IN
•
INTERNAL STRAIGHT KEY WIDTH: 0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.297 INCHES MINIMUM AND 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM0.328 INCHES MAXIMUM IN
•
EXTERNAL KEY QUANTITY: 1313
•
HOLE DIAMETER: 1.250 INCHES MINIMUM AND 1.250 INCHES MINIMUM AND 1.281 INCHES MAXIMUM1.281 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: KEYKEY
•
OVERALL DISTANCE INCLUDING KEYS: 2.422 INCHES MINIMUM AND 2.422 INCHES MINIMUM AND 2.450 INCHES MAXIMUM2.450 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.047 INCHES MINIMUM AND 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM0.078 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY0.383 INCHES NOMINAL0.383 INCHES NOMINAL IN
INTERNAL STRAIGHT KEY WIDTH0.234 INCHES MINIMUM AND 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM0.266 INCHES MAXIMUM IN
EXTERNAL STRAIGHT KEY WIDTH0.297 INCHES MINIMUM AND 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM0.328 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY1313
HOLE DIAMETER1.250 INCHES MINIMUM AND 1.250 INCHES MINIMUM AND 1.281 INCHES MAXIMUM1.281 INCHES MAXIMUM IN
STYLE DESIGNATORKEYKEY
OVERALL DISTANCE INCLUDING KEYS2.422 INCHES MINIMUM AND 2.422 INCHES MINIMUM AND 2.450 INCHES MAXIMUM2.450 INCHES MAXIMUM IN
MATERIAL THICKNESS0.047 INCHES MINIMUM AND 0.047 INCHES MINIMUM AND 0.078 INCHES MAXIMUM0.078 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
OUTSIDE DIAMETER1.922 INCHES MINIMUM AND 1.922 INCHES MINIMUM AND 1.953 INCHES MAXIMUM1.953 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
20115Interchangeable
interchangeable cross-reference
interchangeable
2410 1-15/64Interchangeable
interchangeable cross-reference
interchangeable
110 1-15/64Interchangeable
interchangeable cross-reference
interchangeable
C12277Interchangeable
interchangeable cross-reference
interchangeable
20115-1NInterchangeable
interchangeable cross-reference
interchangeable
820115-2NInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5327190?
5327190 is a WASHER,KEY.
What parts can replace 5327190?
There are 20 known substitutes for 5327190: 20115, 2410 1-15/64, 110 1-15/64 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5327190?
5327190 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-271-3179. 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