PartsTable
Technical Data Sheet
42338R ✓ 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,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1070 OVERALL, thickness: 0.119 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN, hole_diameter: 1.907 INCHES MINIMUM AND 1.909 INCHES MAXIMUM IN, surface_finish: 40.0 MICROINCHES BOTTOM, hardness_rating: 43.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 48.0 ROCKWELL C MAXIMUM, overall_diameter: 2.553 INCHES MINIMUM AND 2.573 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-516-7874, 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
42338R
NSN: 5310-00-516-7874
FSC: 5310
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1070 OVERALL
thickness0.119 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN
hole_diameter1.907 INCHES MINIMUM AND 1.909 INCHES MAXIMUM IN
surface_finish40.0 MICROINCHES BOTTOM
hardness_rating43.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 48.0 ROCKWELL C MAXIMUM
overall_diameter2.553 INCHES MINIMUM AND 2.573 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-516-7874
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 42338R · 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 FINISH: 40.0 MICROINCHES TOP
HOLE DIAMETER: 1.907 INCHES MINIMUM AND 1.909 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLE: ROUND
CENTER HOLE SHAPE STYLE: ROUND
MATERIAL: STEEL COMP 1070 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISH40.0 MICROINCHES TOP
HOLE DIAMETER1.907 INCHES MINIMUM AND 1.909 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
CENTER HOLE SHAPE STYLEROUND
MATERIALSTEEL COMP 1070 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE FINISH40.0 MICROINCHES BOTTOM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
HARDNESS RATING43.0 VICKERS OR FIRTH DIAMOND PYRAMID MINIMUM AND 48.0 ROCKWELL C MAXIMUM
THICKNESS0.119 INCHES MINIMUM AND 0.121 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
A410Interchangeable
interchangeable cross-reference
interchangeable
A430Interchangeable
interchangeable cross-reference
interchangeable
GGU2012SInterchangeable
interchangeable cross-reference
interchangeable
5027T38P02Interchangeable
interchangeable cross-reference
interchangeable
201019Interchangeable
interchangeable cross-reference
interchangeable
19116Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 42338R?
42338R is a WASHER,FLAT.
What parts can replace 42338R?
There are 16 known substitutes for 42338R: A410, A430, GGU2012S and 13 more. Substitute compatibility should be verified for your specific system.
Is 42338R still available?
42338R is currently cancelled.
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