PartsTable
Technical Data Sheet
4-021-30 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
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 FUSE,ENCLOSED LINK is a the manufacturer industrial component. Key specifications include material: COPPER TERMINAL, body_style: FINGER GRIP LIMITER, leg_length: 2.000 INCHES NOMINAL ALL ENDS IN, body_diameter: 0.500 INCHES MAXIMUM IN, overall_height: 1.000 INCHES MAXIMUM IN, overall_length: 2.124 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-482-8895, 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 4-021-30
NSN: 4730-00-482-8895
FSC: 4730
CAGE: 14889 — GEORGE FISCHER SLOANE, INC. (USA)
SPECIFICATIONS
materialCOPPER TERMINAL
body_styleFINGER GRIP LIMITER
leg_length2.000 INCHES NOMINAL ALL ENDS IN
body_diameter0.500 INCHES MAXIMUM IN
overall_height1.000 INCHES MAXIMUM IN
overall_length2.124 INCHES MAXIMUM IN
connection_typeTHREADED INTERNAL PIPE THIRD END
terminal_length0.280 INCHES MINIMUM IN
connection_stylePLAIN (PIPE) THIRD END
special_featuresLEG LENGTHS AND OVERALL LENGTH CAN BE COMPROMISED,THIRD END THREAD DIRECTION R-H
surface_treatmentSILVER TERMINAL
terminal_thickness0.062 INCHES NOMINAL IN
NSN4730-00-482-8895
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4-021-30 · 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
CONNECTION TYPE: UNTHREADED INTERNAL PIPE FIRST END
THREAD SERIES DESIGNATOR: NPT THIRD END
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CONNECTION STYLE: SOCKET (PIPE) FIRST END
MATERIAL: PLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPEUNTHREADED INTERNAL PIPE FIRST END
CONNECTION TYPEUNTHREADED INTERNAL PIPE SECOND END
THREAD SERIES DESIGNATORNPT THIRD END
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D1784,TY 1,GR1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CONNECTION STYLESOCKET (PIPE) FIRST END
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
CONNECTION STYLESOCKET (PIPE) SECOND END
SPECIAL FEATURESLEG LENGTHS AND OVERALL LENGTH CAN BE COMPROMISED,THIRD END THREAD DIRECTION R-H
NOMINAL THREAD SIZE0.500 INCHES THIRD END IN
NOMINAL PIPE SIZE ACCOMMODATED1.000 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
27300Interchangeable
interchangeable cross-reference
interchangeable
4-021-30Interchangeable
interchangeable cross-reference
interchangeable
M5372/1-30Interchangeable
interchangeable cross-reference
interchangeable
E30174ENGL PART 33Interchangeable
interchangeable cross-reference
interchangeable
1507377Interchangeable
interchangeable cross-reference
interchangeable
422372-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-021-30?
4-021-30 is a FUSE,ENCLOSED LINK. It is classified as a MRO (MRO_GENERAL).
What parts can replace 4-021-30?
There are 8 known substitutes for 4-021-30: 27300, 4-021-30, M5372/1-30 and 5 more. Substitute compatibility should be verified for your specific system.
Is 4-021-30 still available?
4-021-30 is currently cancelled.
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