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Technical Data Sheet
PartsTable / MRO / 68420
68420 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 BAR,SELECTOR,TELETYPEWRITER is a the manufacturer industrial component. Key specifications include fsc_application_data: TELETYPE AND FACSIMILE EQUIPMENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-007-6542, 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
MRO→ MRO_GENERAL→ 68420
NSN: 5310-00-007-6542
FSC: 5310
CAGE: 93835 — PARKER HANNIFIN CORPORATION DIV HYDRAULIC SYSTEMS DIVISION (USA)
SPECIFICATIONS
fsc_application_dataTELETYPE AND FACSIMILE EQUIPMENT
NSN5310-00-007-6542
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 68420 · 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
•
MATERIAL: STEEL OR STEEL COMP 1075 OVERALL
•
OUTSIDE DIAMETER: 3.310 INCHES MINIMUM AND 3.330 INCHES MAXIMUM IN
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
•
HOLE DIAMETER: 2.970 INCHES MINIMUM AND 2.990 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-46049 MIL SPEC ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OR STEEL COMP 1075 OVERALL
OUTSIDE DIAMETER3.310 INCHES MINIMUM AND 3.330 INCHES MAXIMUM IN
OVERALL HEIGHT0.095 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
HOLE DIAMETER2.970 INCHES MINIMUM AND 2.990 INCHES MAXIMUM IN
MATERIAL THICKNESS0.045 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-46049 MIL SPEC ALL MATERIAL RESPONSES OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
68420Interchangeable
interchangeable cross-reference
interchangeable
685-68420Interchangeable
interchangeable cross-reference
interchangeable
N6842095Interchangeable
interchangeable cross-reference
interchangeable
6842095Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 68420?
68420 is a BAR,SELECTOR,TELETYPEWRITER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 68420?
There are 4 known substitutes for 68420: 68420, 685-68420, N6842095 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 68420?
68420 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-007-6542. 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