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MS20066-870 — KEY,MACHINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MS20066-870: KEY,MACHINE.

The KEY,MACHINE is a the manufacturer industrial component. Key specifications include overall_width: 1.000 INCHES MINIMUM AND 1.001 INCHES MAXIMUM IN, overall_height: 1.000 INCHES MINIMUM AND 1.001 INCHES MAXIMUM IN, overall_length: 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN, style_designator: PLAIN, starting_edge_shape: STRAIGHT, nondefinitive_spec/std_data: 2 TYPE AND 1 STYLE AND C GRADE. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-428-0765, 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
MS20066-870
NSN: 5315-00-428-0765
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
overall_width1.000 INCHES MINIMUM AND 1.001 INCHES MAXIMUM IN
overall_height1.000 INCHES MINIMUM AND 1.001 INCHES MAXIMUM IN
overall_length2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN
style_designatorPLAIN
starting_edge_shapeSTRAIGHT
nondefinitive_spec/std_data2 TYPE AND 1 STYLE AND C GRADE
NSN5315-00-428-0765
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS20066-870 · 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
•
STARTING EDGE SHAPE: STRAIGHT
•
STYLE DESIGNATOR: PLAIN
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 1 STYLE AND C GRADE
•
MATERIAL: STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1524 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1027 OR STEEL COMP 1029 OR STEEL COMP 1030 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.000 INCHES MINIMUM AND 1.001 INCHES MAXIMUM IN
STARTING EDGE SHAPESTRAIGHT
STYLE DESIGNATORPLAIN
OVERALL LENGTH2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN
OVERALL WIDTH1.000 INCHES MINIMUM AND 1.001 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 1 STYLE AND C GRADE
MATERIALSTEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1524 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1027 OR STEEL COMP 1029 OR STEEL COMP 1030 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OVERALL
SUBSTITUTES & CROSS-REFERENCES 4
857C351H02Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
928J669 PIECE 375Reference document
Same NSN cross-reference
Reference document — Secondary reference
00K220Reference document
Same NSN cross-reference
Reference document — Identification reference
266536Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 MS20066-870?
MS20066-870 is a KEY,MACHINE.
What parts can replace MS20066-870?
There are 4 known substitutes for MS20066-870: 857C351H02, 928J669 PIECE 375, 00K220 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS20066-870?
MS20066-870 is cataloged in the U.S. Government catalog under NSN 5315-00-428-0765. 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.