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Technical Data Sheet
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A-390 — 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 A-390 is a the manufacturer industrial component. Key specifications include special_features: 4-16X42F1, end_item_identification: NIGHTFORCE MIL-SPEC SCOPES, part_name_assigned_by_controlling_agency: EYEPICE FLIP UP LENZ CAP & ADAPTER RING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 6625-00-187-2601, 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→ A-390
NSN: 6625-00-187-2601
FSC: 6625
CAGE: 27361 — BURKE PRODUCTS INC (USA)
SPECIFICATIONS
special_features4-16X42F1
end_item_identificationNIGHTFORCE MIL-SPEC SCOPES
part_name_assigned_by_controlling_agencyEYEPICE FLIP UP LENZ CAP & ADAPTER RING
NSN6625-00-187-2601
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available A-390 TITLE COMPONENT PN A-390 MFR A-390
KEY FEATURES
•
SCALE DIVISION QUANTITY: 4 SINGLE INDICATOR SINGLE RANGE
•
DIAL SCALE MARKING COLOR: WHITE SINGLE INDICATOR SINGLE RANGE
•
MOUNTING STUD DIAMETER: 0.138 INCHES NOMINAL IN
•
SCALE GRADUATION TYPE: LINEAR SINGLE INDICATOR SINGLE RANGE
•
INDICATOR TYPE: DIAL W/POINTER
•
MOVEMENT TYPE: MOVING COIL, PERMANENT MAGNET
•
MOUNTING FACILITY TYPE AND QUANTITY: 2 THREADED STUD(S)
•
UNABLE TO DECODE: UNABLE TO DECODE
TECHNICAL CHARACTERISTICS
SCALE DIVISION QUANTITY4 SINGLE INDICATOR SINGLE RANGE
DIAL SCALE MARKING COLORWHITE SINGLE INDICATOR SINGLE RANGE
MOUNTING STUD DIAMETER0.138 INCHES NOMINAL IN
SCALE GRADUATION TYPELINEAR SINGLE INDICATOR SINGLE RANGE
INDICATOR TYPEDIAL W/POINTER
MOVEMENT TYPEMOVING COIL, PERMANENT MAGNET
MOUNTING FACILITY TYPE AND QUANTITY2 THREADED STUD(S)
UNABLE TO DECODEUNABLE TO DECODE
CIRCUIT ATTACHMENT METHOD AND QUANTITY2 THREADED STUD
FEATURES PROVIDEDZERO ADJUSTER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
92Y13InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9213T26InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RRF221-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MILV17547InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RRF221InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
P28G388InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMATSourcing: other
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FREQUENTLY ASKED QUESTIONS
What is A-390?
A-390 is a A-390. It is classified as a MRO (MRO_GENERAL).
What parts can replace A-390?
There are 10 known substitutes for A-390: 92Y13, 9213T26, RRF221-2 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-390?
A-390 is cataloged in the Federal Logistics Information System under NSN 6625-00-187-2601. 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: October 2026