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Technical Data Sheet
PartsTable / MRO / S351
S351 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include height: 1.375 INCHES NOMINAL IN, material: COTTON AND RUBBER SYNTHETIC INTERMEDIATE RING, thickness: 0.125 INCHES NOMINAL IN, bore_shape: STRAIGHT, joint_type: SCARF-PERIPHERAL INTERMEDIATE RING, bore_diameter: 70.00 MILLIMETERS NOMINAL MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-152-1405, 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
MRO→ MRO_GENERAL→ S351
NSN: 4720-00-152-1405
FSC: 4720
CAGE: 98441 — PARKER HANNIFIN CORP DBA PNEUTRONICS DIV STRATOFLEX PRODUCTS DIVISION (USA)
SPECIFICATIONS
height1.375 INCHES NOMINAL IN
materialCOTTON AND RUBBER SYNTHETIC INTERMEDIATE RING
thickness0.125 INCHES NOMINAL IN
bore_shapeSTRAIGHT
joint_typeSCARF-PERIPHERAL INTERMEDIATE RING
bore_diameter70.00 MILLIMETERS NOMINAL MM
hole_diameter0.531 INCHES NOMINAL IN
overall_width24.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
inside_diameter4.500 INCHES NOMINAL IN
outside_diameter5.375 INCHES NOMINAL IN
NSN4720-00-152-1405
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: S351 · 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
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: 23.200 IN. MIN,23.440 IN. MAX,WORKING LG IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTION23.200 IN. MIN,23.440 IN. MAX,WORKING LG IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
182-1156Interchangeable
interchangeable cross-reference
interchangeable
122357-70Interchangeable
interchangeable cross-reference
interchangeable
MT214Interchangeable
interchangeable cross-reference
interchangeable
S351Interchangeable
interchangeable cross-reference
interchangeable
SC2048Interchangeable
interchangeable cross-reference
interchangeable
426200Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S351?
S351 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace S351?
There are 16 known substitutes for S351: 182-1156, 122357-70, MT214 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S351?
S351 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-152-1405. 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