400DKEYUNIT — 400DKEYUNIT

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

400DKEYUNIT: 400DKEYUNIT.

The 400DKEYUNIT is a the manufacturer industrial component. Key specifications include overall_width: 1.438 INCHES NOMINAL IN, overall_height: 3.500 INCHES NOMINAL IN, overall_length: 5.312 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: FSC APPLICATION DATA: TELEPHONE AND TELEGRAPH EQUIPMENT. This part is cataloged in the U.S.

Government catalog under NSN 5998-00-422-4609, 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→ 400DKEYUNIT

NSN: 5998-00-422-4609
FSC: 5998 — Electrical and Electronic Assemblies, Boards, Cards, and Associated Hardware
CAGE: 64959 — AMERICAN TELEPHONE AND TELEGRAPH CO (USA)

SPECIFICATIONS

overall_width	1.438 INCHES NOMINAL IN
overall_height	3.500 INCHES NOMINAL IN
overall_length	5.312 INCHES NOMINAL IN
part_name_assigned_by_controlling_agency	FSC APPLICATION DATA: TELEPHONE AND TELEGRAPH EQUIPMENT
NSN	5998-00-422-4609

COMPONENT DIAGRAM

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	3.500 INCHES NOMINAL IN
OVERALL LENGTH	5.312 INCHES NOMINAL IN
OVERALL WIDTH	1.438 INCHES NOMINAL IN
SPECIAL FEATURES	PRINTED WIRING BOARD 1,CAPACITOR 5,RESISTOR 13,DIODE 3,TRANSISTOR 2,RELAY 3,TERMINAL BLOCK 1
PART NAME ASSIGNED BY CONTROLLING AGENCY	FSC APPLICATION DATA: TELEPHONE AND TELEGRAPH EQUIPMENT

SUBSTITUTES & CROSS-REFERENCES 8

QUN10DReference document

Same NSN cross-reference

Reference document — Secondary reference

4000-208Reference document

Same NSN cross-reference

Reference document — Secondary reference

705951-900Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

QUN10CReference document

Same NSN cross-reference

Reference document — Secondary reference

LC400-3DReference document

Same NSN cross-reference

Reference document — Secondary reference

400H(L/BSM)KTUReference document

Same NSN cross-reference

Reference document — Design control — primary reference

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — mutilation + specific procedure

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FREQUENTLY ASKED QUESTIONS

What is 400DKEYUNIT?

400DKEYUNIT is a 400DKEYUNIT. It is classified as a MRO (MRO_GENERAL).

What parts can replace 400DKEYUNIT?

There are 8 known substitutes for 400DKEYUNIT: QUN10D, 4000-208, 705951-900 and 5 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 400DKEYUNIT?

400DKEYUNIT is cataloged in the U.S. Government catalog under NSN 5998-00-422-4609. This indicates validated use in U.S. government and defense supply chains.

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