PartsTable
Technical Data Sheet
4944 ✓ Verified by PartsTable
Zyxel · 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 CUTTER,MILLING,SCREW SLOTTING is a Zyxel industrial component. Key specifications include overall_width: 20.000 INCHES NOMINAL IN, overall_height: 3.000 INCHES NOMINAL IN, overall_length: 20.000 INCHES NOMINAL IN, special_features: HEPA SUPPLY FILTER, FOR THE BIOLOGICAL SAFETY CABINET,NSN: 6640-01-498-4194, part_name_assigned_by_controlling_agency: FILTER HEPA 20 BY 20 BY 3 IN. F/BIOLOGICAL SAFETY CABINET IN.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-254-6225, 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
4944
NSN: 4730-00-254-6225
FSC: 4730
CAGE: 24994 — VIANNEY INDUSTRIES, LLC DBA MIDLAND METAL MANUFACTURING COMPANY (USA)
SPECIFICATIONS
overall_width20.000 INCHES NOMINAL IN
overall_height3.000 INCHES NOMINAL IN
overall_length20.000 INCHES NOMINAL IN
special_featuresHEPA SUPPLY FILTER, FOR THE BIOLOGICAL SAFETY CABINET,NSN: 6640-01-498-4194
part_name_assigned_by_controlling_agencyFILTER HEPA 20 BY 20 BY 3 IN. F/BIOLOGICAL SAFETY CABINET IN
NSN4730-00-254-6225
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4944 · Zyxel ⚠ 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: THREADED EXTERNAL PIPE SECOND END
THREAD SERIES DESIGNATOR: UNF FIRST END
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626,COMP 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MAXIMUM OPERATING TEMP: 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
THREAD CLASS: 2A FIRST END A
LEG LENGTH: 0.810 INCHES NOMINAL FIRST END IN
MATERIAL: COPPER ALLOY 360 OVERALL
NONDEFINITIVE SPEC/STD DATA: 11 FIGURE
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
THREAD SERIES DESIGNATORUNF FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,COMP 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MAXIMUM OPERATING TEMP250.0 FAHRENHEIT SINGLE RESPONSE DEGF
THREAD CLASS2A FIRST END A
LEG LENGTH0.810 INCHES NOMINAL FIRST END IN
MATERIALCOPPER ALLOY 360 OVERALL
NONDEFINITIVE SPEC/STD DATA11 FIGURE
FLOW ANGLE90.0 DEGREES
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
5128Interchangeable
interchangeable cross-reference
interchangeable
RD14Interchangeable
interchangeable cross-reference
interchangeable
816933Interchangeable
interchangeable cross-reference
interchangeable
8726Interchangeable
interchangeable cross-reference
interchangeable
20723Interchangeable
interchangeable cross-reference
interchangeable
FWM20723Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4944?
4944 is a CUTTER,MILLING,SCREW SLOTTING manufactured by Zyxel.
What parts can replace 4944?
There are 29 known substitutes for 4944: 5128, RD14, 816933 and 26 more. Substitute compatibility should be verified for your specific system.
Is 4944 still available?
4944 is currently cancelled.
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