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31677 ✓ Verified by PartsTable
Hama · 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 Hama industrial component. Key specifications include height: 0.125 INCHES NOMINAL IN, diameter: 0.562 INCHES NOMINAL IN, material: STEEL OVERALL, head_style: FLAT CHAMFER, chamfer_length: 0.016 INCHES NOMINAL IN, style_designator: STRAIGHT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-536-1044, 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
31677
NSN: 5315-00-536-1044
FSC: 5315
CAGE: 0W357 — PDI GROUND SUPPORT SYSTEMS, INC. (USA)
SPECIFICATIONS
height0.125 INCHES NOMINAL IN
diameter0.562 INCHES NOMINAL IN
materialSTEEL OVERALL
head_styleFLAT CHAMFER
chamfer_length0.016 INCHES NOMINAL IN
style_designatorSTRAIGHT
pin_chamfer_angle45.0 DEGREES NOMINAL
pin_head_diameter0.875 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
under_head_length2.625 INCHES NOMINAL IN
first_hole_diameter0.219 INCHES NOMINAL IN
hole_arrangement_styleONE END DRILLED
NSN5315-00-536-1044
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 31677 · Hama ⚠ 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
•
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN: 0.250 INCHES NOMINAL IN
•
HEIGHT: 0.125 INCHES NOMINAL IN
•
CHAMFER LENGTH: 0.016 INCHES NOMINAL IN
•
PIN CHAMFER ANGLE: 45.0 DEGREES NOMINAL
•
DIAMETER: 0.562 INCHES NOMINAL IN
•
FIRST HOLE DIAMETER: 0.219 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
STYLE DESIGNATOR: STRAIGHT
TECHNICAL CHARACTERISTICS (FLIS)
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN0.250 INCHES NOMINAL IN
HEIGHT0.125 INCHES NOMINAL IN
CHAMFER LENGTH0.016 INCHES NOMINAL IN
PIN CHAMFER ANGLE45.0 DEGREES NOMINAL
DIAMETER0.562 INCHES NOMINAL IN
FIRST HOLE DIAMETER0.219 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM OVERALL
STYLE DESIGNATORSTRAIGHT
HEAD STYLEFLAT CHAMFER
HOLE ARRANGEMENT STYLEONE END DRILLED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
11-801Interchangeable
interchangeable cross-reference
interchangeable
S12RMFInterchangeable
interchangeable cross-reference
interchangeable
PS12KInterchangeable
interchangeable cross-reference
interchangeable
011-801Interchangeable
interchangeable cross-reference
interchangeable
8801K13Interchangeable
interchangeable cross-reference
interchangeable
3200708-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31677?
31677 is a PIN,STRAIGHT,HEADED manufactured by Hama.
What parts can replace 31677?
There are 17 known substitutes for 31677: 11-801, S12RMF, PS12K and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31677?
31677 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-536-1044. 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