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A1246-16 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A1246-16: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include thickness: 0.020 INCHES NOMINAL IN, hole_diameter: 0.358 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN, overall_diameter: 0.677 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND, material_document_and_classification: T6 ASSN STD SINGLE MATERIAL RESPONSE OR T4 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-028-0790, 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
A1246-16
NSN: 5310-01-028-0790
FSC: 5310 — Nuts and Washers
CAGE: 09526 — SEMCO INSTRUMENTS INC DIV ATLAS-AERO CORP., DIVISION OF SEMCO INSTRUMENTS, INC. (USA)
SPECIFICATIONS
thickness0.020 INCHES NOMINAL IN
hole_diameter0.358 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN
overall_diameter0.677 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
material_document_and_classificationT6 ASSN STD SINGLE MATERIAL RESPONSE OR T4 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5310-01-028-0790
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A1246-16 · 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
•
OVERALL DIAMETER: 0.677 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: T6 ASSN STD SINGLE MATERIAL RESPONSE OR T4 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.358 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN
•
THICKNESS: 0.020 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.677 INCHES MINIMUM AND 0.687 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONT6 ASSN STD SINGLE MATERIAL RESPONSE OR T4 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.358 INCHES MINIMUM AND 0.364 INCHES MAXIMUM IN
THICKNESS0.020 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 A1246-16?
A1246-16 is a WASHER,FLAT.
What is the NSN for A1246-16?
A1246-16 is cataloged in the U.S. Government catalog under NSN 5310-01-028-0790. This indicates validated use in U.S. government and defense supply chains.
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