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PartsTable / COMPONENT / BT-1B (18 IN-LB)
BT-1B (18 IN-LB) ✓ 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 BT-1B (18 IN-LB) is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-120-7986, 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
BT-1B (18 IN-LB)
NSN: 5120-01-120-7986
FSC: 5120
CAGE: 53305 — SEEKONK MANUFACTURING COMPANY, INC. DBA SEEKONK MANUFACTURING CO INC (USA)
SPECIFICATIONS
Part NumberBT-1B (18 IN-LB)
NSN5120-01-120-7986
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BT-1B (18 IN-LB) TITLE COMPONENT PN BT-1B (18 IN-LB) MFR BT-1B (18 IN-LB)
KEY FEATURES
•
NONDEFINITIVE SPEC/STD DATA: 3 TYPE AND B CLASS AND 2 STYLE
•
SPECIFICATION/STANDARD DATA: 05047-ASME B107.300 CAT 14 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
STYLE DESIGNATOR: RIGID FRAME T-HANDLE
•
TORQUE INDICATING MECHANISM: PRESET-FIXED
•
MATERIAL: STEEL OVERALL
•
DRIVE SURFACE SIZE: 0.250 INCHES NOMINAL SINGLE END IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH3.000 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA3 TYPE AND B CLASS AND 2 STYLE
SPECIFICATION/STANDARD DATA05047-ASME B107.300 CAT 14 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
STYLE DESIGNATORRIGID FRAME T-HANDLE
TORQUE INDICATING MECHANISMPRESET-FIXED
MATERIALSTEEL OVERALL
DRIVE SURFACE SIZE0.250 INCHES NOMINAL SINGLE END IN
SPECIAL FEATURESPLAIN HEAD; RATCHETING
DRIVE END SHAPESQUARE SINGLE END EXTERNAL
TORQUE SIGNAL METHODFEEL IMPULSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
8131M200651 104MInterchangeable
interchangeable cross-reference
interchangeable
43-801891-3Interchangeable
interchangeable cross-reference
interchangeable
JF1-10Interchangeable
interchangeable cross-reference
interchangeable
PT42Interchangeable
interchangeable cross-reference
interchangeable
B107.300 CAT 14 TY3CLBST2Interchangeable
interchangeable cross-reference
interchangeable
B107.14Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BT-1B (18 IN-LB)?
BT-1B (18 IN-LB) is a BT-1B (18 IN-LB).
What parts can replace BT-1B (18 IN-LB)?
There are 25 known substitutes for BT-1B (18 IN-LB): 8131M200651 104M, 43-801891-3, JF1-10 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BT-1B (18 IN-LB)?
BT-1B (18 IN-LB) is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-120-7986. 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