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5X191 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5X191: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: WOOL COMP 16R3 OVERALL, thickness: 0.188 INCHES NOMINAL IN, hole_diameter: 1.500 INCHES NOMINAL IN, overall_diameter: 2.000 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-245-6159, 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
5X191
NSN: 5310-00-245-6159
NIINs: 002456159, 011537846
FSC: 5310 — Nuts and Washers
CAGE: 3D6E9 — MERITOR INDUSTRIAL PRODUCTS, LLC (USA)
SPECIFICATIONS
materialWOOL COMP 16R3 OVERALL
thickness0.188 INCHES NOMINAL IN
hole_diameter1.500 INCHES NOMINAL IN
overall_diameter2.000 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationC-F-206,TYPE 1,CL 16R3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-245-6159
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5X191 · 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
•
OVERALL DIAMETER: 2.000 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: C-F-206,TYPE 1,CL 16R3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: WOOL COMP 16R3 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 1.500 INCHES NOMINAL IN
•
THICKNESS: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER2.000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONC-F-206,TYPE 1,CL 16R3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALWOOL COMP 16R3 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.500 INCHES NOMINAL IN
THICKNESS0.188 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 4
56121R1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
8500-5009Reference document
Same NSN cross-reference
Reference document — Secondary reference
461520Reference document
Same NSN cross-reference
Reference document — Secondary reference
10673P11Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5X191?
5X191 is a WASHER,FLAT.
What parts can replace 5X191?
There are 4 known substitutes for 5X191: 56121R1, 8500-5009, 461520 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5X191?
5X191 is cataloged in the U.S. Government catalog under NSN 5310-00-245-6159. This indicates validated use in U.S. government and defense supply chains.
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