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PartsTable / COMPONENT / MS19070-042
MS19070-042 ✓ 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 OVERALL, hole_diameter: 0.801 INCHES MINIMUM AND 0.816 INCHES MAXIMUM IN, outside_diameter: 1.125 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN, style_designator: KEY, surface_treatment: CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL, material_thickness: 0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-045-3811, 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
MS19070-042
NSN: 5310-00-045-3811
FSC: 5310
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.801 INCHES MINIMUM AND 0.816 INCHES MAXIMUM IN
outside_diameter1.125 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
style_designatorKEY
surface_treatmentCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
material_thickness0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN
external_key_quantity11
end_item_identificationMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
external_prebent_key_width0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
internal_prebent_key_width0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
internal_prebent_key_length0.062 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
overall_distance_including_keys1.531 INCHES MAXIMUM IN
NSN5310-00-045-3811
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS19070-042 · 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
•
MATERIAL: STEEL OVERALL
•
OVERALL DISTANCE INCLUDING KEYS: 1.531 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.125 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
•
INTERNAL PREBENT KEY LENGTH: 0.062 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
•
EXTERNAL PREBENT KEY WIDTH: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OR SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
OVERALL DISTANCE INCLUDING KEYS1.531 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.125 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
INTERNAL PREBENT KEY LENGTH0.062 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY WIDTH0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
SURFACE TREATMENTCADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OR SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORKEY
HOLE DIAMETER0.801 INCHES MINIMUM AND 0.816 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
6650-1212-2000Interchangeable
interchangeable cross-reference
interchangeable
2022Interchangeable
interchangeable cross-reference
interchangeable
71-2022Interchangeable
interchangeable cross-reference
interchangeable
ES9903-01Interchangeable
interchangeable cross-reference
interchangeable
6650-0000-0000Interchangeable
interchangeable cross-reference
interchangeable
12Z10002-804Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS19070-042?
MS19070-042 is a WASHER,KEY.
What parts can replace MS19070-042?
There are 10 known substitutes for MS19070-042: 6650-1212-2000, 2022, 71-2022 and 7 more. Substitute compatibility should be verified for your specific system.
Is MS19070-042 still available?
MS19070-042 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: July 2026