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1816250 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1816250: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 5052 OVERALL, thickness: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN, hole_diameter: 0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN, overall_diameter: 1.500 INCHES NOMINAL IN, special_features: TWO HLES 0.191 IN. MIN,0.199 IN.

MAX IN, surface_treatment: CHROMATE OVERALL. This part is cataloged in the U.S. Government catalog under NSN 5310-01-122-0863, 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
1816250
NSN: 5310-01-122-0863
FSC: 5310 — Nuts and Washers
CAGE: 03956 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 5052 OVERALL
thickness0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
hole_diameter0.620 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
overall_diameter1.500 INCHES NOMINAL IN
special_featuresTWO HLES 0.191 IN. MIN,0.199 IN. MAX IN
surface_treatmentCHROMATE OVERALL
peripheral_shape_styleDEE
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-A-250/8,H34 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-C-5541,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-122-0863
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1816250 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 1.500 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/8,H34 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
COLOR: GRAY/GREY OVERALL
•
SURFACE TREATMENT: CHROMATE OVERALL
•
PERIPHERAL SHAPE STYLE: DEE
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER1.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/8,H34 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
COLORGRAY/GREY OVERALL
SPECIAL FEATURESTWO HLES 0.191 IN. MIN,0.199 IN. MAX IN
SURFACE TREATMENTCHROMATE OVERALL
PERIPHERAL SHAPE STYLEDEE
MATERIALALUMINUM ALLOY 5052 OVERALL
CENTER HOLE SHAPE STYLEROUND
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 1816250?
1816250 is a WASHER,FLAT.
What is the NSN for 1816250?
1816250 is cataloged in the U.S. Government catalog under NSN 5310-01-122-0863. This indicates validated use in U.S. government and defense supply chains.
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