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Technical Data Sheet
PartsTable / COMPONENT / 1257-2
1257-2 ✓ Verified by PartsTable
Sandberg · 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 Sandberg X-RayCamo headset combines stylish design with super cool sound in a unique lightweight headset. It’s comfortable to wear for long periods of time and easy to carry with you. The cable features a handy volume control with inline microphone and stands out from the crowd due to its attractive and durable nylon cover.

TheX-RayCamo headset is the ultimate headset, ideal both for chilling whenyou’re on the move with your music player and for playing games onyour PC. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-340-1616, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
1257-2
NSN: 5985-00-340-1616
FSC: 5985
CAGE: 24469 — CAES MISSION SYSTEMS LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY
fork_height5.310 INCHES MINIMUM AND 5.312 INCHES MAXIMUM IN
body_diameter0.820 INCHES NOMINAL IN
overall_length4.680 INCHES NOMINAL IN
outside_diameter0.875 INCHES NOMINAL IN
special_featuresCRITACAL FOR CSI ITEM
surface_treatmentSILVER CONDUCTOR
conductor_quantity1
wrenching_facilityNOT INCLUDED
color_coded_featureNOT INCLUDED
connection_end_typeFLANGE
dod_ammunition_code1377-MT84
NSN5985-00-340-1616
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Sandberg TRANSFORMER,RADIO FREQUENCY TITLE COMPONENT PN 1257-2 MFR Sandberg TRANSFORMER,RADIO FREQ
KEY FEATURES
•
CHARACTERISTIC IMPEDANCE IN OHMS: 50.0
•
CONDUCTOR QUANTITY: 1
•
OPERATING VOLTAGE RATING: 5.0 KILOVOLTS
•
TUBING INSIDE DIAMETER: 0.291 INCHES NOMINAL IN
•
TUBING OUTSIDE DIAMETER: 0.341 INCHES NOMINAL IN
•
ACCOMMODATED CONDUCTOR TYPE: COAXIAL
•
MATERIAL: COPPER ALLOY
•
INSULATION SPACER SHAPE: DISC
TECHNICAL CHARACTERISTICS (FLIS)
CHARACTERISTIC IMPEDANCE IN OHMS50.0
CONDUCTOR QUANTITY1
OPERATING VOLTAGE RATING5.0 KILOVOLTS
TUBING INSIDE DIAMETER0.291 INCHES NOMINAL IN
TUBING OUTSIDE DIAMETER0.341 INCHES NOMINAL IN
ACCOMMODATED CONDUCTOR TYPECOAXIAL
MATERIALCOPPER ALLOY
INSULATION SPACER SHAPEDISC
OUTSIDE DIAMETER0.875 INCHES NOMINAL IN
SURFACE TREATMENTSILVER CONDUCTOR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
1257-2-1Interchangeable
interchangeable cross-reference
interchangeable
C85585Interchangeable
interchangeable cross-reference
interchangeable
646F5-8X1-2Interchangeable
interchangeable cross-reference
interchangeable
5159262Interchangeable
interchangeable cross-reference
interchangeable
12572Interchangeable
interchangeable cross-reference
interchangeable
1377-MT84Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1257-2?
1257-2 is a TRANSFORMER,RADIO FREQUENCY manufactured by Sandberg.
What parts can replace 1257-2?
There are 9 known substitutes for 1257-2: 1257-2-1, C85585, 646F5-8X1-2 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1257-2?
1257-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-00-340-1616. 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: July 2026