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999-50001-0000 — Technical Data Sheet

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— · 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 hole_diameter: 0.875 INCHES NOMINAL IN, outside_diameter: 0.750 INCHES NOMINAL IN, end_item_identification: C.I.W.S. MK15 MOD11 C.P.F.,NAVAL ORDNANCE SYSTEMS COMMAND.

This part is cataloged in the Federal Logistics Information System under NSN 5310-00-185-6486, 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
999-50001-0000
NSN: 5310-00-185-6486
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
hole_diameter0.875 INCHES NOMINAL IN
outside_diameter0.750 INCHES NOMINAL IN
end_item_identificationC.I.W.S. MK15 MOD11 C.P.F.,NAVAL ORDNANCE SYSTEMS COMMAND
NSN5310-00-185-6486
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 999-50001-0000 · 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
•
DRIVE POINT DEPTH: 0.062 INCHES NOMINAL IN
•
THREAD PITCH DIAMETERS: +0.4487 TO 0.4513 INCHES IN
•
NOMINAL THREAD SIZE: 0.469 INCHES IN
•
THREAD QUANTITY PER INCH: 32
•
THREAD SERIES: UNS
•
MATERIAL: STEEL OVERALL
•
NUT THICKNESS: 0.312 INCHES NOMINAL IN
•
DRIVE POINT QUANTITY: 4
TECHNICAL CHARACTERISTICS
DRIVE POINT DEPTH0.062 INCHES NOMINAL IN
THREAD PITCH DIAMETERS+0.4487 TO 0.4513 INCHES IN
NOMINAL THREAD SIZE0.469 INCHES IN
THREAD QUANTITY PER INCH32
THREAD SERIESUNS
MATERIALSTEEL OVERALL
NUT THICKNESS0.312 INCHES NOMINAL IN
DRIVE POINT QUANTITY4
NUT STYLEROUND
NUT DIAMETER0.876 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
6801-1302-001InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1073InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2398871InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
40409InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
289819InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
N01InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 999-50001-0000?
999-50001-0000 is a WASHER,KEY.
What parts can replace 999-50001-0000?
There are 20 known substitutes for 999-50001-0000: 6801-1302-001, 1073, 2398871 and 17 more. Substitute compatibility should be verified for your specific system.
Is 999-50001-0000 still available?
999-50001-0000 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026