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34711S ✓ 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 thickness: 0.049 INCHES NOMINAL IN, hole_diameter: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN, overall_diameter: 0.375 INCHES NOMINAL IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND, cross-sectional_shape_style: RECTANGULAR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-209-1491, 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
34711S
NSN: 5310-00-209-1491
FSC: 5310
CAGE: 23040 — FORD MOTOR CO FORD PARTS AND SERVICE DIV GOVERNMENT PART SALES (USA)
SPECIFICATIONS
thickness0.049 INCHES NOMINAL IN
hole_diameter0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
overall_diameter0.375 INCHES NOMINAL IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
nondefinitive_spec/std_dataA TYPE AND I GRADE AND E CLASS
NSN5310-00-209-1491
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 34711S · 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
•
THICKNESS: 0.049 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 0.375 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
CENTER HOLE SHAPE STYLE: ROUND
•
NONDEFINITIVE SPEC/STD DATA: A TYPE AND I GRADE AND E CLASS
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.049 INCHES NOMINAL IN
HOLE DIAMETER0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN
OVERALL DIAMETER0.375 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
CENTER HOLE SHAPE STYLEROUND
NONDEFINITIVE SPEC/STD DATAA TYPE AND I GRADE AND E CLASS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
AMS-QQ-A-200/11Interchangeable
interchangeable cross-reference
interchangeable
13639Interchangeable
interchangeable cross-reference
interchangeable
PA6304Interchangeable
interchangeable cross-reference
interchangeable
116207Interchangeable
interchangeable cross-reference
interchangeable
AM36KInterchangeable
interchangeable cross-reference
interchangeable
D15-631-693Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 34711S?
34711S is a WASHER,FLAT.
What parts can replace 34711S?
There are 18 known substitutes for 34711S: AMS-QQ-A-200/11, 13639, PA6304 and 15 more. Substitute compatibility should be verified for your specific system.
Is 34711S still available?
34711S is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026