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PartsTable / COMPONENT / 1-8 X 1-2 MDP
1-8 X 1-2 MDP ✓ 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 PIN,SPRING is a the manufacturer industrial component. Key specifications include diameter: 0.125 INCHES NOMINAL IN, material: STEEL COMP 302 OVERALL, overall_length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, shear_strength: 650 DOUBLE POUND, style_designator: COILED, expanded_diameter: 0.131 INCHES MINIMUM AND 0.138 INCHES MAXIMUM 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 5315-01-175-7341, 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
1-8 X 1-2 MDP
NSN: 5315-01-175-7341
FSC: 5315
CAGE: 00287 — SPIROL INTERNATIONAL CORPORATION (USA)
SPECIFICATIONS
diameter0.125 INCHES NOMINAL IN
materialSTEEL COMP 302 OVERALL
overall_length0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
shear_strength650 DOUBLE POUND
style_designatorCOILED
expanded_diameter0.131 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
material_document_and_classificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5315-01-175-7341
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1-8 X 1-2 MDP · 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
•
SHEAR STRENGTH: 650 DOUBLE POUND
•
MATERIAL: STEEL COMP 302 OVERALL
•
STYLE DESIGNATOR: COILED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
DIAMETER: 0.125 INCHES NOMINAL IN
•
EXPANDED DIAMETER: 0.131 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
SHEAR STRENGTH650 DOUBLE POUND
MATERIALSTEEL COMP 302 OVERALL
STYLE DESIGNATORCOILED
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
DIAMETER0.125 INCHES NOMINAL IN
EXPANDED DIAMETER0.131 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
34740A34702AInterchangeable
interchangeable cross-reference
interchangeable
3470Interchangeable
interchangeable cross-reference
interchangeable
413-1112Interchangeable
interchangeable cross-reference
interchangeable
4L470Interchangeable
interchangeable cross-reference
interchangeable
5L470Interchangeable
interchangeable cross-reference
interchangeable
J537Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1-8 X 1-2 MDP?
1-8 X 1-2 MDP is a PIN,SPRING.
What parts can replace 1-8 X 1-2 MDP?
There are 15 known substitutes for 1-8 X 1-2 MDP: 34740A34702A, 3470, 413-1112 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1-8 X 1-2 MDP?
1-8 X 1-2 MDP is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-175-7341. 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