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PartsTable / COMPONENT / 74665A
74665A ✓ 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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: STEEL, construction: SEAMLESS, first_end_style: PLAIN, wall_thickness_designation: SCHEDULE XXS, measuring_method_and_length: 192.000 INCHES MINIMUM RANDOM AND 264.000 INCHES MAXIMUM RANDOM IN, specification/standard_data: 81346-A106-68,GRADE B PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-822-5840, 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
74665A
NSN: 4710-00-822-5840
FSC: 4710
CAGE: 00742 — AIR PRODUCTS & CHEMICALS, INC (USA)
SPECIFICATIONS
materialSTEEL
constructionSEAMLESS
first_end_stylePLAIN
wall_thickness_designationSCHEDULE XXS
measuring_method_and_length192.000 INCHES MINIMUM RANDOM AND 264.000 INCHES MAXIMUM RANDOM IN
specification/standard_data81346-A106-68,GRADE B PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
nominal_pipe_size_designation0.500 INCHES IN
material_document_and_classificationASTM A106, GRADE B ASSN STD SINGLE MATERIAL RESPONSE
second_end_relationship_with_first_endIDENTICAL
NSN4710-00-822-5840
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 74665A · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A106, GRADE B ASSN STD SINGLE MATERIAL RESPONSE
•
MATERIAL: STEEL
•
NOMINAL PIPE SIZE DESIGNATION: 0.500 INCHES IN
•
WALL THICKNESS DESIGNATION: SCHEDULE XXS
•
SPECIFICATION/STANDARD DATA: 81346-A106-68,GRADE B PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
FIRST END STYLE: PLAIN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
CONSTRUCTION: SEAMLESS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A106, GRADE B ASSN STD SINGLE MATERIAL RESPONSE
MATERIALSTEEL
NOMINAL PIPE SIZE DESIGNATION0.500 INCHES IN
WALL THICKNESS DESIGNATIONSCHEDULE XXS
SPECIFICATION/STANDARD DATA81346-A106-68,GRADE B PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
FIRST END STYLEPLAIN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
CONSTRUCTIONSEAMLESS
MEASURING METHOD AND LENGTH192.000 INCHES MINIMUM RANDOM AND 264.000 INCHES MAXIMUM RANDOM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
A106-68Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-21248Interchangeable
interchangeable cross-reference
interchangeable
N5000-87-S-PPInterchangeable
interchangeable cross-reference
interchangeable
0740668Interchangeable
interchangeable cross-reference
interchangeable
A53-69Interchangeable
interchangeable cross-reference
interchangeable
ASTMA335Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 74665A?
74665A is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace 74665A?
There are 7 known substitutes for 74665A: A106-68, MIL-DTL-21248, N5000-87-S-PP and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 74665A?
74665A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-822-5840. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026