PartsTable
Technical Data Sheet
120-129 ✓ Verified by PartsTable
Disguise · 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

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include material: COPPER ALLOY OVERALL, thread_class: 2A FIRST END A, overall_width: 0.719 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: COMPRESSION (TUBE) FIRST END, overall_diameter: 1.059 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-270-4558, 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 120-129
NSN: 4730-00-270-4558
FSC: 4730
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
thread_class2A FIRST END A
overall_width0.719 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleCOMPRESSION (TUBE) FIRST END
overall_diameter1.059 INCHES NOMINAL IN
nominal_thread_size0.625 INCHES FIRST END IN
seat_nominal_radius0.062 INCHES FIRST END IN
nominal_overall_length1.190 INCHES IN
thread_series_designatorUNEF FIRST END
nominal_pipe_size_accommodated0.250 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.438 INCHES FIRST END IN
NSN4730-00-270-4558
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 120-129 · Disguise ⚠ 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
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.438 INCHES FIRST END IN
THREAD CLASS: 2A FIRST END A
CONNECTION STYLE: PLAIN (PIPE) SECOND END
MATERIAL: COPPER ALLOY OVERALL
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
NOMINAL OVERALL LENGTH: 1.190 INCHES IN
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.438 INCHES FIRST END IN
THREAD CLASS2A FIRST END A
CONNECTION STYLEPLAIN (PIPE) SECOND END
MATERIALCOPPER ALLOY OVERALL
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION STYLECOMPRESSION (TUBE) FIRST END
NOMINAL OVERALL LENGTH1.190 INCHES IN
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES SECOND END IN
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
THREAD SERIES DESIGNATORUNEF FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
SAE-J512Interchangeable
interchangeable cross-reference
interchangeable
SAE J512 8-6 040102BInterchangeable
interchangeable cross-reference
interchangeable
81790Interchangeable
interchangeable cross-reference
interchangeable
UT3Interchangeable
interchangeable cross-reference
interchangeable
91790Interchangeable
interchangeable cross-reference
interchangeable
91AR25KInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 120-129?
120-129 is a RESISTOR,VARIABLE,NONWIRE WOUND, manufactured by Disguise. It is classified as a MRO (MRO_GENERAL).
What parts can replace 120-129?
There are 17 known substitutes for 120-129: SAE-J512, SAE J512 8-6 040102B, 81790 and 14 more. Substitute compatibility should be verified for your specific system.
Is 120-129 still available?
120-129 is currently cancelled.
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