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Technical Data Sheet
PartsTable / COMPONENT / CH172
CH172 ✓ 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 NOZZLE,FUEL INJECTION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1038 OVERALL, action_type: SINGLE STROKE, cereal_type: PLAIN, design_type: BAR GONG, corner_shape: SQUARE ALL CORNERS, specific_use: LOW SALT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-083-5412, 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
CH172
NSN: 4720-00-083-5412
FSC: 4720
CAGE: 63659 — WALTER MOTOR TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1038 OVERALL
quantity1
action_typeSINGLE STROKE
cereal_typePLAIN
design_typeBAR GONG
corner_shapeSQUARE ALL CORNERS
specific_useLOW SALT
overall_width6.250 INCHES NOMINAL IN
cereal_mixtureCORN
inclosure_typeFULLY INCLOSED
overall_height2.313 INCHES NOMINAL IN
overall_length1.0000 INCHES NOMINAL IN
NSN4720-00-083-5412
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: CH172 · 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
20172Interchangeable
interchangeable cross-reference
interchangeable
77C708671P001Interchangeable
interchangeable cross-reference
interchangeable
ICB1D3Interchangeable
interchangeable cross-reference
interchangeable
1C/B1D3Interchangeable
interchangeable cross-reference
interchangeable
SKA1772Interchangeable
interchangeable cross-reference
interchangeable
174570Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CH172?
CH172 is a NOZZLE,FUEL INJECTION.
What parts can replace CH172?
There are 15 known substitutes for CH172: 20172, 77C708671P001, ICB1D3 and 12 more. Substitute compatibility should be verified for your specific system.
Is CH172 still available?
CH172 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026