PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S9300-921873PC128Diaphragm,speaking

Naval Ship Systems Command · NSN 4240-00-300-6964 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-00-300-6964 — this item is cataloged by the U.S. Government under National Stock Number 4240-00-300-6964. Primary manufacturer part number: S9300-921873PC128.
Features
  • Diaphragm,speaking — FSC 4240
  • 2 verified cross-references
  • Primary manufacturer: Naval Ship Systems Command
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Diaphragm,speaking, cataloged under National Stock Number 4240-00-300-6964, is classified within Federal Supply Class 4240 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Naval Ship Systems Command. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDiaphragm,speaking
FSC / FSG4240 — No Item Name Available (FSG 42)
ManufacturersZf Industrieantriebe Witten Gmbh (CAGE D9182); Naval Ship Systems Command (CAGE 80064)
Technical Specifications
ParameterValue
NSN4240-00-300-6964
Primary Part NumberS9300-921873PC128
Item NameDiaphragm,speaking
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-250-174516530 INTERCHANGEABLE
Transformer,audio Frequency
Freed Transformer Co
6532-00-676-7421 INTERCHANGEABLE
Diaper,adult's
5935-00-836-4819165-30 INTERCHANGEABLE
Connector,plug,electrical
Amphenol Corp Div Amphenol Aerospace Operations
6695-01-133-6033144A9257P5 INTERCHANGEABLE
Transducer,motional Pickup
Bae Systems Controls Inc.
6520-01-376-461416530 INTERCHANGEABLE
Pulp Protector,dental
Kerr Corporation
6515-01-589-9636226.611 INTERCHANGEABLE
Bone Plate
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
5895-01-686-492316530 INTERCHANGEABLE
Switching Set,communications
Extreme Networks, Inc
Cross-Reference Index
Part NumberManufacturer
16530 Zf Industrieantriebe Witten Gmbh (DEU)
S9300-921873PC128 PRIMARY Naval Ship Systems Command (USA)
Related Parts
5950-00-250-1745INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
16530
6532-00-676-7421INTERCHANGEABLE
DIAPER,ADULT'S
5935-00-836-4819INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
165-30
6695-01-133-6033INTERCHANGEABLE
TRANSDUCER,MOTIONAL PICKUP
144A9257P5
6520-01-376-4614INTERCHANGEABLE
PULP PROTECTOR,DENTAL
16530
6515-01-589-9636INTERCHANGEABLE
BONE PLATE
226.611
5895-01-686-4923INTERCHANGEABLE
SWITCHING SET,COMMUNICATIONS
16530

Frequently Asked Questions

What is NSN 4240-00-300-6964?

NSN 4240-00-300-6964 is a Diaphragm,speaking, manufactured by Naval Ship Systems Command, classified under FSC 4240 (No Item Name Available). Status: active.

What are the part numbers for NSN 4240-00-300-6964?

NSN 4240-00-300-6964 has 2 cross-referenced part numbers: 16530 (Zf Industrieantriebe Witten Gmbh), S9300-921873PC128 (Naval Ship Systems Command).

What NSN replaces 4240-00-300-6964?

There are 7 known substitutes for 4240-00-300-6964: 5950-00-250-1745, 6532-00-676-7421, 5935-00-836-4819 and 4 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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