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Technical Data Sheet
PartsTable / MRO / ST2101
ST2101 ✓ 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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include body_material: METAL, overall_width: 1.241 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN, inclosure_type: ENCASED, overall_height: 1.241 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN, overall_length: 1.300 INCHES NOMINAL IN, special_features: 55 FUNCTIONS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-358-6004, 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→ ST2101
NSN: 4730-00-358-6004
FSC: 4730
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
body_materialMETAL
overall_width1.241 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
inclosure_typeENCASED
overall_height1.241 INCHES MINIMUM AND 1.250 INCHES MAXIMUM IN
overall_length1.300 INCHES NOMINAL IN
special_features55 FUNCTIONS
style_designatorFILTER CONNECTOR
maximum_temp_rise25.0 CELSIUS DEGC
precious_materialGOLD
operating_temp_range-55.0 TO 125.0 CELSIUS DEGC
body_surface_treatmentTIN
load_impedance_per_function50.0 OHMS 1ST RADIO INTERFERENCE FIRST FUNCTION
NSN4730-00-358-6004
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ST2101 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
ST7M199T6Interchangeable
interchangeable cross-reference
interchangeable
9806-13Interchangeable
interchangeable cross-reference
interchangeable
ST7M199Interchangeable
interchangeable cross-reference
interchangeable
BACT14A6Interchangeable
interchangeable cross-reference
interchangeable
ST2101Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-6117Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ST2101?
ST2101 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace ST2101?
There are 9 known substitutes for ST2101: ST7M199T6, 9806-13, ST7M199 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST2101?
ST2101 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-358-6004. 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