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Technical Data Sheet
PartsTable / COMPONENT / SS845-1889587PC
SS845-1889587PC ✓ 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 LOCKNUT,DISK VALVE is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: NICKEL COPPER,FED SPEC QQ-N-281 AND QQ-N-288; FOR 1.000 IN. STOP VALVE IN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-087-7113, 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
SS845-1889587PC
NSN: 5310-01-087-7113
FSC: 5310
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
general_characteristics_item_descriptionNICKEL COPPER,FED SPEC QQ-N-281 AND QQ-N-288; FOR 1.000 IN. STOP VALVE IN
NSN5310-01-087-7113
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SS845-1889587PC · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: NICKEL COPPER,FED SPEC QQ-N-281 AND QQ-N-288; FOR 1.000 IN. STOP VALVE IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONNICKEL COPPER,FED SPEC QQ-N-281 AND QQ-N-288; FOR 1.000 IN. STOP VALVE IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
C38476Interchangeable
interchangeable cross-reference
interchangeable
SS845-1889587Interchangeable
interchangeable cross-reference
interchangeable
SC3549 3-4INInterchangeable
interchangeable cross-reference
interchangeable
2620-902 ASSY CInterchangeable
interchangeable cross-reference
interchangeable
845-1889587ASSYCFInterchangeable
interchangeable cross-reference
interchangeable
2620-902Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SS845-1889587PC?
SS845-1889587PC is a LOCKNUT,DISK VALVE.
What parts can replace SS845-1889587PC?
There are 28 known substitutes for SS845-1889587PC: C38476, SS845-1889587, SC3549 3-4IN and 25 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SS845-1889587PC?
SS845-1889587PC is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-087-7113. 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