PartsTable
Technical Data Sheet
2120-20 ✓ 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

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include oil_groove: NOT INCLUDED, skirt_type: SOLID, carbon_groove: NOT INCLUDED, pin_hole_bushing: NOT INCLUDED, retaining_ring_groove: NOT INCLUDED, pin_type_for_which_designed: FLOATING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-372-3754, 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
2120-20
NSN: 4730-00-372-3754
FSC: 4730
CAGE: 75185 — LASCO FITTINGS INC (USA)
SPECIFICATIONS
oil_grooveNOT INCLUDED
skirt_typeSOLID
carbon_grooveNOT INCLUDED
pin_hole_bushingNOT INCLUDED
ring_groove_quantity3
retaining_ring_grooveNOT INCLUDED
pin_type_for_which_designedFLOATING
skirt_bottom_cutaway_featureNOT INCLUDED
NSN4730-00-372-3754
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2120-20 · 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
STYLE DESIGNATOR: SHORT
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
NOMINAL OVERALL LENGTH: 2.000 INCHES IN
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
MATERIAL: PLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
NOMINAL THREAD SIZE: 1.250 INCHES ALL ENDS IN
THREAD SERIES DESIGNATOR: NPT ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSHORT
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
NOMINAL OVERALL LENGTH2.000 INCHES IN
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
NOMINAL THREAD SIZE1.250 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORNPT ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
2120B00Interchangeable
interchangeable cross-reference
interchangeable
2120-20Interchangeable
interchangeable cross-reference
interchangeable
303741300Interchangeable
interchangeable cross-reference
interchangeable
9140-3295Interchangeable
interchangeable cross-reference
interchangeable
861171Interchangeable
interchangeable cross-reference
interchangeable
0171130-171Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2120-20?
2120-20 is a PISTON,INTERNAL COMBUSTION ENGIN.
What parts can replace 2120-20?
There are 10 known substitutes for 2120-20: 2120B00, 2120-20, 303741300 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2120-20?
2120-20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-372-3754. This indicates validated use in U.S. government and defense supply chains.
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