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421-4(245-4) — Technical Data Sheet

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— · 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 COMP 304 OVERALL, nut_style: HEXAGON, head_style: HEXAGON, nut_height: 0.750 INCHES NOMINAL IN, head_height: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN, thread_class: 2B. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-460-3915, 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
421-4(245-4)
NSN: 4720-00-460-3915
FSC: 4720
CAGE: 98441 — PARKER HANNIFIN CORP DBA PNEUTRONICS DIV STRATOFLEX PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
nut_styleHEXAGON
head_styleHEXAGON
nut_height0.750 INCHES NOMINAL IN
head_height0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN
thread_class2B
nominal_width0.531 INCHES IN
thread_length1.500 INCHES MAXIMUM IN
thread_seriesUNF
surface_finish125.0 MICROINCHES BOTH ENDS
fastener_length1.500 INCHES NOMINAL IN
first_end_styleSQUARE
NSN4720-00-460-3915
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 421-4(245-4) · 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 20
4214Interchangeable
interchangeable cross-reference
interchangeable
16117Interchangeable
interchangeable cross-reference
interchangeable
FFS85TYPE2STYLE10PInterchangeable
interchangeable cross-reference
interchangeable
26946Interchangeable
interchangeable cross-reference
interchangeable
GGG-P-781Interchangeable
interchangeable cross-reference
interchangeable
GGG-P-781 TY8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 421-4(245-4)?
421-4(245-4) is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace 421-4(245-4)?
There are 20 known substitutes for 421-4(245-4): 4214, 16117, FFS85TYPE2STYLE10P and 17 more. Substitute compatibility should be verified for your specific system.
Is 421-4(245-4) still available?
421-4(245-4) 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: September 2026