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CH840 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The HOSE,PREFORMED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, blade_size: LARGE SIZE, blade_width: 2.125 INCHES NOMINAL IN, blade_length: 12.250 INCHES NOMINAL IN, special_features: FOR USE IN SURGERY, design_designation: ALLISON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-037-5804, 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
CH840
NSN: 4720-01-037-5804
FSC: 4720
CAGE: 24161 — GATES CORPORATION (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
blade_sizeLARGE SIZE
blade_width2.125 INCHES NOMINAL IN
blade_length12.250 INCHES NOMINAL IN
special_featuresFOR USE IN SURGERY
design_designationALLISON
part_name_assigned_by_controlling_agencyRETRACTOR LUNG ALLISON CRS LRG SZ 12.25" BLADE LG 2.125" BLADE W
NSN4720-01-037-5804
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: CH840 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
20840Interchangeable
interchangeable cross-reference
interchangeable
SM-B-427190Interchangeable
interchangeable cross-reference
interchangeable
P5D7137Interchangeable
interchangeable cross-reference
interchangeable
3027Interchangeable
IBM - 9GB U160 10K 68pin Drive
interchangeable
R17009Interchangeable
interchangeable cross-reference
interchangeable
15952Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CH840?
CH840 is a HOSE,PREFORMED.
What parts can replace CH840?
There are 15 known substitutes for CH840: 20840, SM-B-427190, P5D7137 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CH840?
CH840 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-037-5804. 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