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PartsTable / COMPONENT / PM-105 ITEM 2
PM-105 ITEM 2 ✓ 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,SHOULDERED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1015 OVERALL, hole_diameter: 2.1255 INCHES MINIMUM AND 2.1265 INCHES MAXIMUM IN, shoulder_height: 0.343 INCHES NOMINAL IN, outside_diameter: 3.000 INCHES NOMINAL IN, style_designator: SHOULDERED, shoulder_diameter: 2.625 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 5310-01-274-7242, 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
PM-105 ITEM 2
NSN: 5310-01-274-7242
FSC: 5310
CAGE: 21482 — BELCO INDUSTRIES, INC. DBA BELCO INDUSTRIES INC DIV FAMCO MACHINE DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP 1015 OVERALL
hole_diameter2.1255 INCHES MINIMUM AND 2.1265 INCHES MAXIMUM IN
shoulder_height0.343 INCHES NOMINAL IN
outside_diameter3.000 INCHES NOMINAL IN
style_designatorSHOULDERED
shoulder_diameter2.625 INCHES NOMINAL IN
material_thickness0.156 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5310-01-274-7242
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: PM-105 ITEM 2 · 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
•
SHOULDER DIAMETER: 2.625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDERED
•
MATERIAL THICKNESS: 0.156 INCHES NOMINAL IN
•
SHOULDER HEIGHT: 0.343 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.000 INCHES NOMINAL IN
•
HOLE DIAMETER: 2.1255 INCHES MINIMUM AND 2.1265 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 1015 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SHOULDER DIAMETER2.625 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
STYLE DESIGNATORSHOULDERED
MATERIAL THICKNESS0.156 INCHES NOMINAL IN
SHOULDER HEIGHT0.343 INCHES NOMINAL IN
OUTSIDE DIAMETER3.000 INCHES NOMINAL IN
HOLE DIAMETER2.1255 INCHES MINIMUM AND 2.1265 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1015 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
W02Interchangeable
interchangeable cross-reference
interchangeable
N9087PC26Interchangeable
interchangeable cross-reference
interchangeable
HN39PC114Interchangeable
interchangeable cross-reference
interchangeable
101-085Interchangeable
interchangeable cross-reference
interchangeable
QB89025-1Interchangeable
interchangeable cross-reference
interchangeable
W-1006Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is PM-105 ITEM 2?
PM-105 ITEM 2 is a WASHER,SHOULDERED.
What parts can replace PM-105 ITEM 2?
There are 8 known substitutes for PM-105 ITEM 2: W02, N9087PC26, HN39PC114 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for PM-105 ITEM 2?
PM-105 ITEM 2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-274-7242. 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