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Technical Data Sheet
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3100-68 — Technical Data Sheet

✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The 3100-68 is a the manufacturer industrial component. Key specifications include FSC APPLICATION DATA: TELETYPE AND FACSIMILE EQUIPMENT. This part is cataloged in the Federal Logistics Information System under NSN 5325-00-664-6806, 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→ 3100-68
NSN: 5325-00-664-6806
FSC: 5325
CAGE: 97464 — TRUARC CO LLC (USA)
SPECIFICATIONS
FSC APPLICATION DATATELETYPE AND FACSIMILE EQUIPMENT
NSN5325-00-664-6806
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 3100-68 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MAJOR THICKNESS: 0.042 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
INSIDE DIAMETER: 0.635 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
MATERIAL HARDNESS RATING: 66.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 71.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
•
USAGE DESIGN: EXTERNAL
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: EXTERNAL
TECHNICAL CHARACTERISTICS
MAJOR THICKNESS0.042 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
INSIDE DIAMETER0.635 INCHES NOMINAL IN
MATERIALSTEEL
MATERIAL HARDNESS RATING66.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 71.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
USAGE DESIGNEXTERNAL
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEEXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
559-1561-065InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
CB4722InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
12-712004-72InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
510068InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
47434042InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5100-68MFInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3100-68?
3100-68 is a 3100-68. It is classified as a MRO (MRO_GENERAL).
What parts can replace 3100-68?
There are 18 known substitutes for 3100-68: 559-1561-065, CB4722, 12-712004-72 and 15 more. Substitute compatibility should be verified for your specific system.
Is 3100-68 still available?
3100-68 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026