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PartsTable / COMPONENT / MIL-M-3971/2
MIL-M-3971/2 ✓ Verified by PartsTable
— · COMPONENT
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 MIL-M-3971/2 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6645-01-280-2674, 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
MIL-M-3971/2
NSN: 6645-01-280-2674
FSC: 6645
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
Part NumberMIL-M-3971/2
NSN6645-01-280-2674
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MIL-M-3971/2 TITLE COMPONENT PN MIL-M-3971/2 MFR MIL-M-3971/2
KEY FEATURES
•
MOVEMENT TYPE: ELECTRICAL
•
VOLTAGE RATING: 115.0 VOLTS MINIMUM AND 128.0 VOLTS MAXIMUM
•
HERMETIC PROTECTION: PROVIDED
•
OPERATING FREQUENCY: 400.0 HERTZ NOMINAL
•
BODY DIAMETER: 2.625 INCHES MAXIMUM IN
•
RESET FEATURE: NOT PROVIDED
•
BODY LENGTH: 3.000 INCHES MAXIMUM IN
•
MOUNTING TYPE: PANEL
TECHNICAL CHARACTERISTICS (FLIS)
MOVEMENT TYPEELECTRICAL
VOLTAGE RATING115.0 VOLTS MINIMUM AND 128.0 VOLTS MAXIMUM
HERMETIC PROTECTIONPROVIDED
OPERATING FREQUENCY400.0 HERTZ NOMINAL
BODY DIAMETER2.625 INCHES MAXIMUM IN
RESET FEATURENOT PROVIDED
BODY LENGTH3.000 INCHES MAXIMUM IN
MOUNTING TYPEPANEL
INDICATOR TYPEDIGITAL COUNTER
CURRENT TYPEAC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
220-007Interchangeable
interchangeable cross-reference
interchangeable
PT5-6Interchangeable
interchangeable cross-reference
interchangeable
20287-187Interchangeable
interchangeable cross-reference
interchangeable
700019Interchangeable
interchangeable cross-reference
interchangeable
AGA1-20Interchangeable
interchangeable cross-reference
interchangeable
AG5ZInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-M-3971/2?
MIL-M-3971/2 is a MIL-M-3971/2.
What parts can replace MIL-M-3971/2?
There are 18 known substitutes for MIL-M-3971/2: 220-007, PT5-6, 20287-187 and 15 more. Substitute compatibility should be verified for your specific system.
Is MIL-M-3971/2 still available?
MIL-M-3971/2 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026