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Technical Data Sheet
PartsTable / MRO / A3-30
A3-30 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 HEADSET-CHEST SET,ELECTRICAL is a the manufacturer industrial component. Key specifications include color: YELLOW, diameter: 0.313 INCHES NOMINAL IN, material: STEEL, bore_shape: STRAIGHT, drive_type: SLOTTED, grip_length: 0.300 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 5845-00-357-9503, 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→ A3-30
NSN: 5845-00-357-9503
FSC: 5845
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
colorYELLOW
diameter0.313 INCHES NOMINAL IN
materialSTEEL
bore_shapeSTRAIGHT
drive_typeSLOTTED
grip_length0.300 INCHES NOMINAL IN
constructionNONCOLLAPSIBLE
bore_diameter20.00 MILLIMETERS NOMINAL MM
door_quantity2
overall_width20.64 MILLIMETERS NOMINAL MM
conductor_formSOLID SINGLE CONDUCTOR
load_directionANGULAR
NSN5845-00-357-9503
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HEADSET-CHEST SET,ELECTRICAL TITLE COMPONENT PN A3-30 MFR HEADSET-CHEST SET,ELEC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
BP4762Interchangeable
interchangeable cross-reference
interchangeable
412A21EInterchangeable
interchangeable cross-reference
interchangeable
A330Interchangeable
interchangeable cross-reference
interchangeable
1201-330-Z3CInterchangeable
interchangeable cross-reference
interchangeable
12Z12006-3Interchangeable
interchangeable cross-reference
interchangeable
4188809-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A3-30?
A3-30 is a HEADSET-CHEST SET,ELECTRICAL. It is classified as a MRO (MRO_GENERAL).
What parts can replace A3-30?
There are 12 known substitutes for A3-30: BP4762, 412A21E, A330 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A3-30?
A3-30 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5845-00-357-9503. 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