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PartsTable / COMPONENT / 1175J66 ITEM 28
1175J66 ITEM 28 ✓ 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 CORROSION RESISTING OVERALL, hole_diameter: 1.583 INCHES MINIMUM AND 1.603 INCHES MAXIMUM IN, outside_diameter: 2.000 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN, style_designator: KEY, material_thickness: 0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN, external_key_quantity: 15. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-133-1592, 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
1175J66 ITEM 28
NSN: 5310-01-133-1592
FSC: 5310
CAGE: 94259 — FLUOR MARINE PROPULSION, LLC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
hole_diameter1.583 INCHES MINIMUM AND 1.603 INCHES MAXIMUM IN
outside_diameter2.000 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN
style_designatorKEY
material_thickness0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
external_key_quantity15
special_test_featuresSPECIAL QUALITY CONTROL TESTING
external_prebent_key_width0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
internal_prebent_key_width0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
internal_prebent_key_length0.093 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
departure_from_cited_documentAS MODIFIED BY MATERIAL
criticality_code_justificationZZZY
NSN5310-01-133-1592
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1175J66 ITEM 28 · 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
•
EXTERNAL KEY QUANTITY: 15
•
INTERNAL PREBENT KEY WIDTH: 0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
DEPARTURE FROM CITED DOCUMENT: AS MODIFIED BY MATERIAL
•
EXTERNAL PREBENT KEY WIDTH: 0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: AS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATIONS
•
INTERNAL PREBENT KEY LENGTH: 0.093 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
•
HOLE DIAMETER: 1.583 INCHES MINIMUM AND 1.603 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
EXTERNAL KEY QUANTITY15
INTERNAL PREBENT KEY WIDTH0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
MATERIALSTEEL CORROSION RESISTING OVERALL
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY MATERIAL
EXTERNAL PREBENT KEY WIDTH0.204 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY MATERIAL WHICH MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS AND CERTIFIED FREE FROM MERCURY CONTAMINATIONS
INTERNAL PREBENT KEY LENGTH0.093 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
HOLE DIAMETER1.583 INCHES MINIMUM AND 1.603 INCHES MAXIMUM IN
STYLE DESIGNATORKEY
SPECIAL TEST FEATURESSPECIAL QUALITY CONTROL TESTING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
08P10847-2400Interchangeable
interchangeable cross-reference
interchangeable
C6649PC30Interchangeable
interchangeable cross-reference
interchangeable
M2851PC33Interchangeable
interchangeable cross-reference
interchangeable
1445Interchangeable
interchangeable cross-reference
interchangeable
W0-8Interchangeable
interchangeable cross-reference
interchangeable
PC9581Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1175J66 ITEM 28?
1175J66 ITEM 28 is a WASHER,KEY.
What parts can replace 1175J66 ITEM 28?
There are 11 known substitutes for 1175J66 ITEM 28: 08P10847-2400, C6649PC30, M2851PC33 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1175J66 ITEM 28?
1175J66 ITEM 28 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-133-1592. 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