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PartsTable / COMPONENT / 115-38-503
115-38-503 ✓ 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,SADDLE is a the manufacturer industrial component. Key specifications include radius: 0.167 INCHES NOMINAL IN, material: STEEL OVERALL, hole_diameter: 0.172 INCHES NOMINAL IN, overall_width: 0.500 INCHES NOMINAL IN, overall_height: 0.100 INCHES NOMINAL IN, overall_length: 0.532 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-784-3052, 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
115-38-503
NSN: 5310-00-784-3052
FSC: 5310
CAGE: 88818 — KEARFOTT CORPORATION DIV GUIDANCE AND NAVIGATION DIVISION (USA)
SPECIFICATIONS
radius0.167 INCHES NOMINAL IN
materialSTEEL OVERALL
hole_diameter0.172 INCHES NOMINAL IN
overall_width0.500 INCHES NOMINAL IN
overall_height0.100 INCHES NOMINAL IN
overall_length0.532 INCHES NOMINAL IN
style_designatorSADDLE
surface_treatmentCADMIUM OVERALL
surface_treatment_document_and_classificationQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-784-3052
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 115-38-503 · 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: CADMIUM OVERALL
•
STYLE DESIGNATOR: SADDLE
•
MATERIAL: STEEL OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HOLE DIAMETER: 0.172 INCHES NOMINAL IN
•
RADIUS: 0.167 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTCADMIUM OVERALL
STYLE DESIGNATORSADDLE
MATERIALSTEEL OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL HEIGHT0.100 INCHES NOMINAL IN
HOLE DIAMETER0.172 INCHES NOMINAL IN
RADIUS0.167 INCHES NOMINAL IN
OVERALL LENGTH0.532 INCHES NOMINAL IN
OVERALL WIDTH0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
D3SE-167GYInterchangeable
interchangeable cross-reference
interchangeable
54B7288H03Interchangeable
interchangeable cross-reference
interchangeable
107026-3Interchangeable
interchangeable cross-reference
interchangeable
A-5794023 PIECE 4Interchangeable
interchangeable cross-reference
interchangeable
D-167Interchangeable
interchangeable cross-reference
interchangeable
365-421-0001-03Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 115-38-503?
115-38-503 is a WASHER,SADDLE.
What parts can replace 115-38-503?
There are 6 known substitutes for 115-38-503: D3SE-167GY, 54B7288H03, 107026-3 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 115-38-503?
115-38-503 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-784-3052. 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