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PartsTable / COMPONENT / 1136203
1136203 ✓ 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 NUT,SHEET SPRING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: SHEET SPRING, nut_width: 0.312 INCHES NOMINAL IN, nut_length: 0.375 INCHES NOMINAL IN, panel_thickness: 0.038 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN, surface_treatment: PHOSPHATE AND PAINT OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-275-3537, 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
1136203
NSN: 5310-00-275-3537
FSC: 5310
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleSHEET SPRING
nut_width0.312 INCHES NOMINAL IN
nut_length0.375 INCHES NOMINAL IN
panel_thickness0.038 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
surface_treatmentPHOSPHATE AND PAINT OVERALL
material_thickness0.017 INCHES NOMINAL IN
nondefinitive_spec/std_data1 TYPE
mating_member_diameter_accommodated0.138 INCHES NOMINAL IN
NSN5310-00-275-3537
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1136203 · 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 TREATMENT: PHOSPHATE AND PAINT OVERALL
•
NUT STYLE: SHEET SPRING
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
•
MATERIAL THICKNESS: 0.017 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
PANEL THICKNESS: 0.038 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
•
NUT LENGTH: 0.375 INCHES NOMINAL IN
•
MATING MEMBER DIAMETER ACCOMMODATED: 0.138 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTPHOSPHATE AND PAINT OVERALL
NUT STYLESHEET SPRING
NONDEFINITIVE SPEC/STD DATA1 TYPE
MATERIAL THICKNESS0.017 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
PANEL THICKNESS0.038 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
NUT LENGTH0.375 INCHES NOMINAL IN
MATING MEMBER DIAMETER ACCOMMODATED0.138 INCHES NOMINAL IN
NUT WIDTH0.312 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
10579Interchangeable
interchangeable cross-reference
interchangeable
MILN3337TYPE1Interchangeable
interchangeable cross-reference
interchangeable
C8016-832-1Interchangeable
interchangeable cross-reference
interchangeable
12Z2020-408Interchangeable
interchangeable cross-reference
interchangeable
12Z2040PC404Interchangeable
interchangeable cross-reference
interchangeable
C410-632-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1136203?
1136203 is a NUT,SHEET SPRING.
What parts can replace 1136203?
There are 7 known substitutes for 1136203: 10579, MILN3337TYPE1, C8016-832-1 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1136203?
1136203 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-275-3537. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026