PartsTable
Technical Data Sheet
221-524 ✓ Verified by PartsTable
· HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The REACTOR ASY is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, connection_style: PLAIN (OPTIONAL END), style_designator: CAP, thread_direction: RIGHT-HAND INTERNAL, nominal_thread_size: 0.375 INCHES INTERNAL IN, thread_series_designator: NPT INTERNAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-231-2410, 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
221-524
NSN: 4730-00-231-2410
FSC: 4730
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialIRON OVERALL
connection_stylePLAIN (OPTIONAL END)
style_designatorCAP
thread_directionRIGHT-HAND INTERNAL
nominal_thread_size0.375 INCHES INTERNAL IN
thread_series_designatorNPT INTERNAL
nondefinitive_spec/std_data1 TYPE
material_document_and_classificationASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
nominal_pipe_size_for_which_designed0.375 INCHES IN
NSN4730-00-231-2410
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 221-524 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
THREAD DIRECTION: RIGHT-HAND INTERNAL
THREAD SERIES DESIGNATOR: NPT INTERNAL
CONNECTION STYLE: PLAIN (OPTIONAL END)
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE: 0.375 INCHES INTERNAL IN
MATERIAL: IRON OVERALL
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
STYLE DESIGNATOR: CAP
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND INTERNAL
THREAD SERIES DESIGNATORNPT INTERNAL
CONNECTION STYLEPLAIN (OPTIONAL END)
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.375 INCHES INTERNAL IN
MATERIALIRON OVERALL
NONDEFINITIVE SPEC/STD DATA1 TYPE
STYLE DESIGNATORCAP
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.375 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
416-3308-004Interchangeable
interchangeable cross-reference
interchangeable
WWP521TYPE1Interchangeable
interchangeable cross-reference
interchangeable
13218E0059-5Interchangeable
interchangeable cross-reference
interchangeable
52445-2Interchangeable
interchangeable cross-reference
interchangeable
ASME B16.3Interchangeable
interchangeable cross-reference
interchangeable
BM11383-97Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 221-524?
221-524 is a REACTOR ASY.
What parts can replace 221-524?
There are 16 known substitutes for 221-524: 416-3308-004, WWP521TYPE1, 13218E0059-5 and 13 more. Substitute compatibility should be verified for your specific system.
Is 221-524 still available?
221-524 is currently cancelled.
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