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Technical Data Sheet
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120704 ✓ 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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include length: 0.281 INCHES NOMINAL SQUARE END IN, material: STEEL OVERALL, thread_length: 0.938 INCHES NOMINAL IN, overall_length: 2.375 INCHES NOMINAL IN, shank_diameter: 0.220 INCHES NOMINAL IN, style_designator: STRAIGHT FLUTE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-231-6384, 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
120704
NSN: 4730-00-231-6384
FSC: 4730
CAGE: 93334 — ATWOOD FENCE CO INC (USA)
SPECIFICATIONS
length0.281 INCHES NOMINAL SQUARE END IN
materialSTEEL OVERALL
thread_length0.938 INCHES NOMINAL IN
flute_quantity4
overall_length2.375 INCHES NOMINAL IN
shank_diameter0.220 INCHES NOMINAL IN
style_designatorSTRAIGHT FLUTE
thread_directionRIGHT-HAND
thread_structureREGULAR
width_across_flats0.165 INCHES NOMINAL IN
starting_chamfer_typePLUG
thread_forming_methodGROUND
NSN4730-00-231-6384
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 120704 · 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 CLASS: 3A A
•
THREAD SERIES: UNF
•
NOMINAL TUBE OUTSIDE DIAMETER: 0.250 INCHES IN
•
THREAD QUANTITY PER INCH: 24
•
SEAT ANGLE: 37.00 DEGREES NOMINAL
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
SMALLEST INSIDE DIAMETER: 0.125 INCHES NOMINAL IN
•
NUT HEIGHT: 0.812 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3A A
THREAD SERIESUNF
NOMINAL TUBE OUTSIDE DIAMETER0.250 INCHES IN
THREAD QUANTITY PER INCH24
SEAT ANGLE37.00 DEGREES NOMINAL
NOMINAL THREAD SIZE0.312 INCHES IN
SMALLEST INSIDE DIAMETER0.125 INCHES NOMINAL IN
NUT HEIGHT0.812 INCHES NOMINAL IN
NUT STYLETUBE COUPLING
MATERIALCOPPER ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
C54390Interchangeable
interchangeable cross-reference
interchangeable
120704Interchangeable
interchangeable cross-reference
interchangeable
11703Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 120704?
120704 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace 120704?
There are 3 known substitutes for 120704: C54390, 120704, 11703. Substitute compatibility should be verified for your specific system.
What is the NSN for 120704?
120704 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-231-6384. 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