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Technical Data Sheet
PartsTable / COMPONENT / 9003000
9003000 ✓ 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,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM, outside_diameter: 0.588 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN, style_designator: FLAT EXTERNAL TEETH, material_thickness: 0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-209-2615, 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
9003000
NSN: 5310-00-209-2615
FSC: 5310
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
outside_diameter0.588 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN
style_designatorFLAT EXTERNAL TEETH
material_thickness0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
nondefinitive_spec/std_dataB TYPE AND 1 CLASS AND 1 DESIGN
material_document_and_classificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-209-2615
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 9003000 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
STYLE DESIGNATOR: FLAT EXTERNAL TEETH
•
HOLE DIAMETER: 0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.588 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: B TYPE AND 1 CLASS AND 1 DESIGN
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
•
MATERIAL THICKNESS: 0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATORFLAT EXTERNAL TEETH
HOLE DIAMETER0.320 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.588 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATAB TYPE AND 1 CLASS AND 1 DESIGN
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
MATERIAL THICKNESS0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
3208XIAInterchangeable
interchangeable cross-reference
interchangeable
903208Interchangeable
interchangeable cross-reference
interchangeable
30D86Interchangeable
interchangeable cross-reference
interchangeable
70-0050-1482-7Interchangeable
interchangeable cross-reference
interchangeable
62-4662-4829-1Interchangeable
interchangeable cross-reference
interchangeable
6065Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9003000?
9003000 is a WASHER,LOCK.
What parts can replace 9003000?
There are 18 known substitutes for 9003000: 3208XIA, 903208, 30D86 and 15 more. Substitute compatibility should be verified for your specific system.
Is 9003000 still available?
9003000 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