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90866-991 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

90866-991: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5315-01-167-1864, 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
90866-991
NSN: 5315-01-167-1864
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 076M6 — AMZ ALABAMA INC. (USA)
SPECIFICATIONS
Part Number90866-991
NSN5315-01-167-1864
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 90866-991 · 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
SUBSTITUTES & CROSS-REFERENCES 2
011246Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
21572112-228Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90866-991?
90866-991 is a KEY,MACHINE.
What parts can replace 90866-991?
There are 2 known substitutes for 90866-991: 011246, 21572112-228. Substitute compatibility should be verified for your specific system.
What is the NSN for 90866-991?
90866-991 is cataloged in the U.S. Government catalog under NSN 5315-01-167-1864. This indicates validated use in U.S. government and defense supply chains.
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