PartsTable
Technical Data Sheet
1945391-2 ✓ 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,FLAT is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON OVERALL, thickness: 0.016 INCHES NOMINAL IN, hole_diameter: 0.125 INCHES NOMINAL IN, hardness_rating: 111.0 ROCKWELL R MINIMUM AND 118.0 ROCKWELL R MAXIMUM, overall_diameter: 0.250 INCHES NOMINAL IN, peripheral_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-990-8607, 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
1945391-2
NSN: 5310-00-990-8607
FSC: 5310
CAGE: 55974 — HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER TEST SYSTEMS DIV (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON OVERALL
thickness0.016 INCHES NOMINAL IN
hole_diameter0.125 INCHES NOMINAL IN
hardness_rating111.0 ROCKWELL R MINIMUM AND 118.0 ROCKWELL R MAXIMUM
overall_diameter0.250 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
minimum_tensile_strength7000 POUNDS PER SQUARE INCH LBS
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-990-8607
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1945391-2 · 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
PERIPHERAL SHAPE STYLE: ROUND
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIAL: PLASTIC POLYAMIDE NYLON OVERALL
THICKNESS: 0.016 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLE: ROUND
OVERALL DIAMETER: 0.250 INCHES NOMINAL IN
HARDNESS RATING: 111.0 ROCKWELL R MINIMUM AND 118.0 ROCKWELL R MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
PERIPHERAL SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-M-20693 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALPLASTIC POLYAMIDE NYLON OVERALL
THICKNESS0.016 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER0.250 INCHES NOMINAL IN
HARDNESS RATING111.0 ROCKWELL R MINIMUM AND 118.0 ROCKWELL R MAXIMUM
MINIMUM TENSILE STRENGTH7000 POUNDS PER SQUARE INCH LBS
HOLE DIAMETER0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
659-3Interchangeable
interchangeable cross-reference
interchangeable
E-3547Interchangeable
interchangeable cross-reference
interchangeable
6515NCM082360Interchangeable
interchangeable cross-reference
interchangeable
A9385Interchangeable
interchangeable cross-reference
interchangeable
CA9385Interchangeable
interchangeable cross-reference
interchangeable
328C119H04Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
Ready to buy 1945391-2?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1945391-2?
1945391-2 is a WASHER,FLAT.
What parts can replace 1945391-2?
There are 6 known substitutes for 1945391-2: 659-3, E-3547, 6515NCM082360 and 3 more. Substitute compatibility should be verified for your specific system.
Is 1945391-2 still available?
1945391-2 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1945391-2