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81638 — GEAR ASSEMBLY,SPEED DECREASER

✓ Government record, cited
Jumbo · GATE VALVE
PRODUCT OVERVIEW

81638: GEAR ASSEMBLY,SPEED DECREASER.

The GEAR ASSEMBLY,SPEED DECREASER is a Jumbo industrial component. Key specifications include material: PLASTIC HANDLE, tip_type: TORX, blade_length: 4.000 INCHES NOMINAL IN, overall_length: 8.200 INCHES NOMINAL IN, tip_size_designation: T30, end_item_identification: SATS. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-245-1375, 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
81638
NSN: 4820-01-245-1375
NIINs: 012451375, 013218495, 013300647, 016521111
FSC: 4820 — Valves, Nonpowered
CAGE: 09790 — EATON AEROSPACE LLC DBA STERER ENGINEERING DIV VALVE & ACTUATOR (USA)
SPECIFICATIONS
materialPLASTIC HANDLE
tip_typeTORX
blade_length4.000 INCHES NOMINAL IN
overall_length8.200 INCHES NOMINAL IN
tip_size_designationT30
end_item_identificationSATS
NSN4820-01-245-1375
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 81638 · Jumbo ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 81638?
81638 is a GEAR ASSEMBLY,SPEED DECREASER manufactured by Jumbo.
What is the NSN for 81638?
81638 is cataloged in the U.S. Government catalog under NSN 4820-01-245-1375. This indicates validated use in U.S. government and defense supply chains.
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