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A475 — HEADSET-CHEST SET,ELECTRICAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A475: HEADSET-CHEST SET,ELECTRICAL.

The HEADSET-CHEST SET,ELECTRICAL is a the manufacturer industrial component. Key specifications include frequency_rating: 750.0 HERTZ MINIMUM AND 2600.0 HERTZ MAXIMUM, impedance_rating: 110.0 OHMS NOMINAL, output_level_rating: SPECIFIED ACCUSTICAL INPUT AS PER SPEC BELOW, microphone_element_type: DYNAMIC, earphone_impedance_rating: 1.2 KILOHMS NOMINAL, microphone_mounting_facility: BRACKET(S). This part is cataloged in the U.S.

Government catalog under NSN 5340-00-695-9874, 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
A475
NSN: 5340-00-695-9874
NIINs: 006959874, 009006401, 017220053
FSC: 5340 — Hardware, Commercial
CAGE: 76040 — MACK TRUCKS INC PARTS OPN (USA)
SPECIFICATIONS
frequency_rating750.0 HERTZ MINIMUM AND 2600.0 HERTZ MAXIMUM
impedance_rating110.0 OHMS NOMINAL
earphone_quantity2
output_level_ratingSPECIFIED ACCUSTICAL INPUT AS PER SPEC BELOW
microphone_element_typeDYNAMIC
earphone_impedance_rating1.2 KILOHMS NOMINAL
microphone_mounting_facilityBRACKET(S)
chest_plate_suspension_methodNECK STRAP
earphone_dc_resistance_rating400.0 OHMS NOMINAL
NSN5340-00-695-9874
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A475 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A475?
A475 is a HEADSET-CHEST SET,ELECTRICAL.
What is the NSN for A475?
A475 is cataloged in the U.S. Government catalog under NSN 5340-00-695-9874. This indicates validated use in U.S. government and defense supply chains.
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