Stranded for flexible routing, solid for conduit THHN/THWN dual-rated — check both tables
Ampacity depends on installation method
PRODUCT OVERVIEW
The KEY,SOCKET HEAD SCREW is a Trefl industrial component. Key specifications include material: STEEL OVERALL, long_arm_length: 1.630 INCHES NOMINAL IN, short_arm_length: 0.530 INCHES NOMINAL IN, style_designator: L-HANDLE, features_provided: SHORT SERIES, surface_treatment: OXIDE OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-643-2458, 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→1550-2
NSN:6145-00-643-2458 FSC:6145 CAGE:92194 — BELDEN, INC. (USA)
SPECIFICATIONS
material
STEEL OVERALL
long_arm_length
1.630 INCHES NOMINAL IN
short_arm_length
0.530 INCHES NOMINAL IN
style_designator
L-HANDLE
features_provided
SHORT SERIES
surface_treatment
OXIDE OVERALL
wrenching_surface_size
1.3 MILLIMETERS NOMINAL BOTH ENDS MM
wrenching_surface_shape
HEXAGON BOTH ENDS EXTERNAL
part_name_assigned_by_controlling_agency
ASSEMBLY,ROD,CONNECTING
NSN
6145-00-643-2458
COMPONENT DIAGRAM
KEY FEATURES
•
VOLTAGE RATING: 1000.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
•
MATERIAL: PLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
•
CONDUCTOR FORM: STRANDED SINGLE CONDUCTOR
•
STRAND AWG SIZE PER CONDUCTOR: 32 SINGLE CONDUCTOR
•
ROUND CONDUCTOR SIZE: 24 AWG SINGLE CONDUCTOR
•
STRAND QUANTITY PER CONDUCTOR: 7 SINGLE CONDUCTOR
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-W-343,SOFT FED SPEC SINGLE MATERIAL RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
•
COLOR: BLACK FIRST POSITION COVER SINGLE CONDUCTOR
TECHNICAL CHARACTERISTICS (FLIS)
VOLTAGE RATING
1000.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
MATERIAL
PLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION PRIMARY INSULATION SINGLE CONDUCTOR
CONDUCTOR FORM
STRANDED SINGLE CONDUCTOR
STRAND AWG SIZE PER CONDUCTOR
32 SINGLE CONDUCTOR
ROUND CONDUCTOR SIZE
24 AWG SINGLE CONDUCTOR
STRAND QUANTITY PER CONDUCTOR
7 SINGLE CONDUCTOR
MATERIAL DOCUMENT AND CLASSIFICATION
QQ-W-343,SOFT FED SPEC SINGLE MATERIAL RESPONSE CORE CONDUCTOR SINGLE CONDUCTOR
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FREQUENTLY ASKED QUESTIONS
What is 1550-2?
1550-2 is a KEY,SOCKET HEAD SCREW manufactured by Trefl. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1550-2?
There are 15 known substitutes for 1550-2: WL1.1.2.1.18C92, JANC76, MIL-DTL-76 and 12 more. Substitute compatibility should be verified for your specific system.
Is 1550-2 still available?
1550-2 is currently cancelled.
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