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Technical Data Sheet
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A330 — Technical Data Sheet

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— · 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 diameter: 0.313 INCHES NOMINAL IN, material: STEEL, bore_shape: STRAIGHT, drive_type: SLOTTED, grip_length: 0.300 INCHES NOMINAL IN, construction: NONCOLLAPSIBLE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System 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→ A330
NSN: 5845-00-357-9503
FSC: 5845
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
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
overall_length3.333 FEET FT
NSN5845-00-357-9503
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available HEADSET-CHEST SET,ELECTRICAL TITLE COMPONENT PN A330 MFR HEADSET-CHEST SET,ELEC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
BP4762InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
412A21EInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1201-330-Z3CInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
12Z12006-3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
4188809-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5315009048902InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A330?
A330 is a HEADSET-CHEST SET,ELECTRICAL. It is classified as a MRO (MRO_GENERAL).
What parts can replace A330?
There are 11 known substitutes for A330: BP4762, 412A21E, 1201-330-Z3C and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A330?
A330 is cataloged in the Federal Logistics Information System 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: September 2026