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A18873 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A18873: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, thickness: 0.025 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN, hole_diameter: 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN, overall_diameter: 0.380 INCHES NOMINAL IN, surface_treatment: PASSIVATE OVERALL, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-802-9894, 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
A18873
NSN: 5310-00-802-9894
FSC: 5310 — Nuts and Washers
CAGE: 02145 — RICHARDS IMAGERY INTERPRETATION SYSTEMS, L.L.C. (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
thickness0.025 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
hole_diameter0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
overall_diameter0.380 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationAMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-802-9894
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A18873 · 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: 0.380 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 302 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.380 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTPASSIVATE OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 302 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.260 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
THICKNESS0.025 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 2
18873Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
A18873-1Reference document
Same NSN cross-reference
Reference document — Replaced / superseded reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A18873?
A18873 is a WASHER,FLAT.
What parts can replace A18873?
There are 2 known substitutes for A18873: 18873, A18873-1. Substitute compatibility should be verified for your specific system.
What is the NSN for A18873?
A18873 is cataloged in the U.S. Government catalog under NSN 5310-00-802-9894. This indicates validated use in U.S. government and defense supply chains.
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