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Technical Data Sheet
FED-STD 156 ✓ 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 LOCKNUT,ELECTRICAL CONDUIT is a the manufacturer industrial component. Key specifications include end_type: COMPRESSION RING AND NUT SECOND END, material: IRON MALLEABLE OR STEEL, drive_type: SPANNER, thread_size: 1-1/4-11-1/2, thread_type: STRAIGHT, storage_type: GENERAL PURPOSE WAREHOUSE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5975-00-097-8097, 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
FED-STD 156
NSN: 5975-00-097-8097
FSC: 5975
CAGE: 06542 — FEDERAL STANDARDS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
SPECIFICATIONS
end_typeCOMPRESSION RING AND NUT SECOND END
materialIRON MALLEABLE OR STEEL
drive_typeSPANNER
thread_size1-1/4-11-1/2
thread_typeSTRAIGHT
storage_typeGENERAL PURPOSE WAREHOUSE
overall_width1.031 INCHES NOMINAL IN
thread_length0.562 INCHES NOMINAL SECOND END IN
overall_length3.062 INCHES NOMINAL IN
furnished_itemsLOCKNUT
deflection_angle90.0 DEGREES
outside_diameter2.950 INCHES NOMINAL IN
NSN5975-00-097-8097
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LOCKNUT,ELECTRICAL CONDUIT TITLE COMPONENT PN FED-STD 156 MFR LOCKNUT,ELECTRICAL CON
KEY FEATURES
MATERIAL: IRON MALLEABLE OR STEEL
DRIVE TYPE: KEYWAY
THREAD SIZE: 3 IN.-8 IN
THREAD TYPE: STRAIGHT
NONDEFINITIVE SPEC/STD DATA: 1 CLASS AND P KIND AND 3 TYPE
CONDUIT SIZE ACCOMMODATED: 3.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONB-52 AIRCRAFT AND H-3 HELICOPTER SUPPORT EQUIPMENT
MATERIALIRON MALLEABLE OR STEEL
DRIVE TYPEKEYWAY
THREAD SIZE3 IN.-8 IN
THREAD TYPESTRAIGHT
NONDEFINITIVE SPEC/STD DATA1 CLASS AND P KIND AND 3 TYPE
CONDUIT SIZE ACCOMMODATED3.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
54B6891H10Interchangeable
Same NIIN cross-reference
interchangeable
AA50553-3-1-P-1-08-MInterchangeable
Same NIIN cross-reference
interchangeable
A-A-50553Interchangeable
Same NIIN cross-reference
interchangeable
W-F-408Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FED-STD 156?
FED-STD 156 is a LOCKNUT,ELECTRICAL CONDUIT.
What parts can replace FED-STD 156?
There are 4 known substitutes for FED-STD 156: 54B6891H10, AA50553-3-1-P-1-08-M, A-A-50553 and 1 more. Substitute compatibility should be verified for your specific system.
Is FED-STD 156 still available?
FED-STD 156 is currently cancelled.
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