PartsTable
Technical Data Sheet
PartsTable / COMPONENT / A42
A42 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The TELEPHONE,SECURE UNIT is a the manufacturer industrial component. Key specifications include display_type: LIGHT EMITTING DIODE (L.E.D.).. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3455-00-228-5219, 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
A42
NSN: 3455-00-228-5219
FSC: 3455
CAGE: 49352 — TRW CUTTING TOOL DIV OF TRW INC (USA)
SPECIFICATIONS
display_typeLIGHT EMITTING DIODE (L.E.D.).
display_digit_quantity4
NSN3455-00-228-5219
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TELEPHONE,SECURE UNIT TITLE COMPONENT PN A42 MFR TELEPHONE,SECURE UNIT
KEY FEATURES
•
MATERIAL: STEEL
•
FLUTE DESIGN: HELICAL
•
CUT LENGTH: 1.625 INCHES NOMINAL IN
•
HELIX DIRECTION: RIGHT-HAND
•
SHANK TYPE: WELDON
•
DIAMETER: 0.750 INCHES NOMINAL IN
•
SHANK DIAMETER: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH3.750 INCHES NOMINAL IN
MATERIALSTEEL
FLUTE DESIGNHELICAL
CUT LENGTH1.625 INCHES NOMINAL IN
HELIX DIRECTIONRIGHT-HAND
SHANK TYPEWELDON
DIAMETER0.750 INCHES NOMINAL IN
SHANK DIAMETER0.625 INCHES NOMINAL IN
DESIGN FORMSINGLE END
CUTTING ROTATION DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
8528-1Interchangeable
interchangeable cross-reference
interchangeable
15791Interchangeable
interchangeable cross-reference
interchangeable
AL976Interchangeable
interchangeable cross-reference
interchangeable
43515Interchangeable
interchangeable cross-reference
interchangeable
215-32361-1Interchangeable
interchangeable cross-reference
interchangeable
55264Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy A42?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is A42?
A42 is a TELEPHONE,SECURE UNIT.
What parts can replace A42?
There are 22 known substitutes for A42: 8528-1, 15791, AL976 and 19 more. Substitute compatibility should be verified for your specific system.
Is A42 still available?
A42 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — A42

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026