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TB-637 — PARTS KIT,PUSH-PULL CONTROL ASSE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

TB-637: PARTS KIT,PUSH-PULL CONTROL ASSE.

PARTS KIT,PUSH-PULL CONTROL ASSE. Key specifications include end_item_identification: 4940-01-443-3225,SUPPLY CLASS AOE. This part is cataloged in the U.S.

Government catalog under NSN 3040-01-443-6344, 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
TB-637
NSN: 3040-01-443-6344
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 08832 — SCHROEDER INDUSTRIES LLC (USA)
SPECIFICATIONS
end_item_identification4940-01-443-3225,SUPPLY CLASS AOE
NSN3040-01-443-6344
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PARTS KIT,PUSH-PULL CONTROL ASSE TITLE COMPONENT PN TB-637 MFR PARTS KIT,PUSH-PULL CO
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATION4940-01-443-3225,SUPPLY CLASS AOE
OTHER ITEMS IN FSC 3040 — Miscellaneous Power Transmission Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3040-00-001-0046 3040-00-001-0047 3040-00-001-0048 3040-00-001-0068 3040-00-001-0077 3040-00-001-0078 3040-00-001-0089 3040-00-001-1224
SUBSTITUTES & CROSS-REFERENCES 2
A-60479Reference document
Same NSN cross-reference
Reference document — Secondary reference
D4232 IT178/179Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is TB-637?
TB-637 is a PARTS KIT,PUSH-PULL CONTROL ASSE.
What parts can replace TB-637?
There are 2 known substitutes for TB-637: A-60479, D4232 IT178/179. Substitute compatibility should be verified for your specific system.
What is the NSN for TB-637?
TB-637 is cataloged in the U.S. Government catalog under NSN 3040-01-443-6344. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.