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5186577 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5186577: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, thickness: 0.121 INCHES NOMINAL IN, hole_diameter: 0.547 INCHES NOMINAL IN, hardness_rating: 65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM, overall_diameter: 0.750 INCHES NOMINAL IN, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-291-2958, 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
5186577
NSN: 5310-00-291-2958
NIINs: 002912958, 007749545
FSC: 5310 — Nuts and Washers
CAGE: 72582 — ROLLS-ROYCE SOLUTIONS AMERICA INC (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
thickness0.121 INCHES NOMINAL IN
hole_diameter0.547 INCHES NOMINAL IN
hardness_rating65.0 SHORE DUROMETER A MINIMUM AND 75.0 SHORE DUROMETER A MAXIMUM
overall_diameter0.750 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
minimum_tensile_strength1000 POUNDS PER SQUARE INCH LBS
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationAMS 3228 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-291-2958
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5186577 · 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: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
•
HARDNESS RATING: 70.0 DUROMETER NOMINAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 3228 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: RUBBER SYNTHETIC OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.537 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
HARDNESS RATING70.0 DUROMETER NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 3228 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALRUBBER SYNTHETIC OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.537 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN
THICKNESS0.121 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 5
0X8677Reference document
Same NSN cross-reference
Reference document — Secondary reference
K-5186577Reference document
Same NSN cross-reference
Reference document — Secondary reference
PC5186577Reference document
Same NSN cross-reference
Reference document — Secondary reference
5310002912958Reference document
Same NSN cross-reference
Reference document — Secondary reference
5184302Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5186577?
5186577 is a WASHER,FLAT.
What parts can replace 5186577?
There are 5 known substitutes for 5186577: 0X8677, K-5186577, PC5186577 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5186577?
5186577 is cataloged in the U.S. Government catalog under NSN 5310-00-291-2958. 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.