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A78-356 — WASHER,SPLIT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A78-356: WASHER,SPLIT.

The WASHER,SPLIT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN, outside_diameter: 0.344 INCHES NOMINAL IN, style_designator: SPLIT, surface_treatment: CADMIUM OVERALL, material_thickness: 0.031 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-598-8346, 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
A78-356
NSN: 5310-00-598-8346
FSC: 5310 — Nuts and Washers
CAGE: 96152 — BORG-WARNER CORP MARVEL-SCHEBLER/TILLOTSON DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
outside_diameter0.344 INCHES NOMINAL IN
style_designatorSPLIT
surface_treatmentCADMIUM OVERALL
material_thickness0.031 INCHES NOMINAL IN
distance_across_split_opening0.172 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
NSN5310-00-598-8346
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A78-356 · 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
•
DISTANCE ACROSS SPLIT OPENING: 0.172 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SPLIT
•
OUTSIDE DIAMETER: 0.344 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.031 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DISTANCE ACROSS SPLIT OPENING0.172 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN
STYLE DESIGNATORSPLIT
OUTSIDE DIAMETER0.344 INCHES NOMINAL IN
MATERIAL THICKNESS0.031 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER0.190 INCHES MINIMUM AND 0.194 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
78-356Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A78-356?
A78-356 is a WASHER,SPLIT.
What parts can replace A78-356?
There is 1 known substitute for A78-356: 78-356. Substitute compatibility should be verified for your specific system.
What is the NSN for A78-356?
A78-356 is cataloged in the U.S. Government catalog under NSN 5310-00-598-8346. 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.