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PartsTable / COMPONENT / 11-031Z
11-031Z ✓ 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,STRAIGHT,HEADED is a the manufacturer industrial component. Key specifications include height: 0.094 INCHES NOMINAL IN, diameter: 0.250 INCHES NOMINAL IN, material: STEEL COMP 1018 OVERALL, pin_head_diameter: 0.375 INCHES NOMINAL IN, surface_treatment: ZINC OVERALL, under_head_length: 0.797 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 5315-01-438-7940, 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
11-031Z
NSN: 5315-01-438-7940
FSC: 5315
CAGE: 0PXJ7 — MEDALIST-REIN LEITZKE (USA)
SPECIFICATIONS
height0.094 INCHES NOMINAL IN
diameter0.250 INCHES NOMINAL IN
materialSTEEL COMP 1018 OVERALL
pin_head_diameter0.375 INCHES NOMINAL IN
surface_treatmentZINC OVERALL
under_head_length0.797 INCHES NOMINAL IN
NSN5315-01-438-7940
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 11-031Z · 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
•
HEIGHT: 0.094 INCHES NOMINAL IN
•
PIN HEAD DIAMETER: 0.375 INCHES NOMINAL IN
•
DIAMETER: 0.250 INCHES NOMINAL IN
•
SURFACE TREATMENT: ZINC OVERALL
•
UNDER HEAD LENGTH: 0.797 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 1018 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HEIGHT0.094 INCHES NOMINAL IN
PIN HEAD DIAMETER0.375 INCHES NOMINAL IN
DIAMETER0.250 INCHES NOMINAL IN
SURFACE TREATMENTZINC OVERALL
UNDER HEAD LENGTH0.797 INCHES NOMINAL IN
MATERIALSTEEL COMP 1018 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
25085Interchangeable
interchangeable cross-reference
interchangeable
A2053Interchangeable
interchangeable cross-reference
interchangeable
149A63Interchangeable
interchangeable cross-reference
interchangeable
C12162Interchangeable
interchangeable cross-reference
interchangeable
1302Interchangeable
interchangeable cross-reference
interchangeable
940 25/64Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11-031Z?
11-031Z is a PIN,STRAIGHT,HEADED.
What parts can replace 11-031Z?
There are 15 known substitutes for 11-031Z: 25085, A2053, 149A63 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11-031Z?
11-031Z is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-438-7940. 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