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Technical Data Sheet
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227404 ✓ 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 MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL, nut_style: TUBE COUPLING, body_width: 0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, nut_height: 0.810 INCHES NOMINAL IN, seat_angle: 45.00 DEGREES NOMINAL, body_height: 0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-202-6538, 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
227404
NSN: 4730-00-202-6538
FSC: 4730
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL
nut_styleTUBE COUPLING
body_width0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
nut_height0.810 INCHES NOMINAL IN
seat_angle45.00 DEGREES NOMINAL
body_height0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
body_length0.796 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
thread_directionRIGHT-HAND
features_providedHERMETICALLY SEALED AND MONOLITHIC AND POSITIVE OUTPUTS
output_logic_formTRANSISTOR-TRANSISTOR LOGIC
NSN4730-00-202-6538
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 227404 · 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 SERIES: UNF
•
MATERIAL: STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
•
SMALLEST INSIDE DIAMETER: 0.360 INCHES NOMINAL IN
•
NOMINAL TUBE OUTSIDE DIAMETER: 0.250 INCHES IN
•
SEAT ANGLE: 45.00 DEGREES NOMINAL
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
NUT HEIGHT: 0.810 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIESUNF
MATERIALSTEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
SMALLEST INSIDE DIAMETER0.360 INCHES NOMINAL IN
NOMINAL TUBE OUTSIDE DIAMETER0.250 INCHES IN
SEAT ANGLE45.00 DEGREES NOMINAL
NOMINAL THREAD SIZE0.625 INCHES IN
NUT HEIGHT0.810 INCHES NOMINAL IN
NUT STYLETUBE COUPLING
LENGTH TO SHOULDER0.670 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
586-326Interchangeable
interchangeable cross-reference
interchangeable
35474040-1001Interchangeable
interchangeable cross-reference
interchangeable
0301-8490Interchangeable
interchangeable cross-reference
interchangeable
227404Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 227404?
227404 is a MICROCIRCUIT,DIGITAL.
What parts can replace 227404?
There are 4 known substitutes for 227404: 586-326, 35474040-1001, 0301-8490 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 227404?
227404 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-202-6538. 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