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93016J4303 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

93016J4303: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, thickness: 0.248 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN, hole_diameter: 1.254 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN, hardness_rating: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM, overall_diameter: 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN, peripheral_shape_style: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-508-8017, 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
93016J4303
NSN: 5310-01-508-8017
FSC: 5310 — Nuts and Washers
CAGE: 01365 — MARINE CORPS SYSTEMS COMMAND DIV MARINE CORPS SYSTEMS COMMAND TECHNICAL DATA REPOSITORY CUSTOMER SERVICE (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
thickness0.248 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN
hole_diameter1.254 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
hardness_rating28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
overall_diameter1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN
peripheral_shape_styleROUND
supplementary_featuresMATERIAL IS SAE 4140. LEADED. H.R. ALLOY STEEL, H.T. TO 28-34 RC; ALL SURFACES MACHINED TO 125 RMS
center_hole_shape_styleROUND
end_item_identificationFUEL PUMP, 600 GPM (FU604G) 4930-01-392-7579
cross-sectional_shape_styleRECTANGULAR
inside_left_corner_chamfer_angle44.0 DEGREES MINIMUM AND 46.0 DEGREES MAXIMUM
NSN5310-01-508-8017
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 93016J4303 · 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: 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN
•
SUPPLEMENTARY FEATURES: MATERIAL IS SAE 4140. LEADED. H.R. ALLOY STEEL, H.T. TO 28-34 RC; ALL SURFACES MACHINED TO 125 RMS
•
HARDNESS RATING: 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
INSIDE LEFT CORNER CHAMFER ANGLE: 44.0 DEGREES MINIMUM AND 46.0 DEGREES MAXIMUM
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 4140 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN
SUPPLEMENTARY FEATURESMATERIAL IS SAE 4140. LEADED. H.R. ALLOY STEEL, H.T. TO 28-34 RC; ALL SURFACES MACHINED TO 125 RMS
HARDNESS RATING28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
INSIDE LEFT CORNER CHAMFER ANGLE44.0 DEGREES MINIMUM AND 46.0 DEGREES MAXIMUM
PERIPHERAL SHAPE STYLEROUND
END ITEM IDENTIFICATIONFUEL PUMP, 600 GPM (FU604G) 4930-01-392-7579
MATERIALSTEEL COMP 4140 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER1.254 INCHES MINIMUM AND 1.260 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
5086D-16040Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 93016J4303?
93016J4303 is a WASHER,FLAT.
What parts can replace 93016J4303?
There is 1 known substitute for 93016J4303: 5086D-16040. Substitute compatibility should be verified for your specific system.
What is the NSN for 93016J4303?
93016J4303 is cataloged in the U.S. Government catalog under NSN 5310-01-508-8017. 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.