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4121-090 — TEE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4121-090: TEE,PIPE.

The TEE,PIPE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, leg_length: 1.000 INCHES NOMINAL FIRST END IN, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, special_features: ALL THREAD DIRECTIONS R-H, operating_pressure: 125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-070-3045, 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
4121-090
NSN: 4730-01-070-3045
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 72423 — FLAGG STANLEY G & CO INC DBA FLAGG BRASS (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
leg_length1.000 INCHES NOMINAL FIRST END IN
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
special_featuresALL THREAD DIRECTIONS R-H
operating_pressure125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
nominal_thread_size0.500 INCHES THIRD END IN
maximum_operating_temp150.0 FAHRENHEIT SINGLE RESPONSE DEGF
media_for_which_designedWATER-OIL-GAS SECOND RESPONSE
thread_series_designatorNPT ALL ENDS
nondefinitive_spec/std_dataA CLASS AND 1 RATING
specification/standard_data81348-WW-P-460 GOVERNMENT SPECIFICATION
NSN4730-01-070-3045
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4121-090 · 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
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B61 ASSN STD 1ST MATERIAL RESPONSE OR ASTM B62 ASSN STD 2ND MATERIAL RESPONSE OR ASTM B145 ALLOY 4B ASSN STD 3RD MATERIAL RESPONSE OR QQ-390 COMPOSITION 3 FED SPEC 4TH MATERIAL RESPONSE OVERALL
•
OPERATING PRESSURE: 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
•
LEG LENGTH: 0.875 INCHES NOMINAL SECOND END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B61 ASSN STD 1ST MATERIAL RESPONSE OR ASTM B62 ASSN STD 2ND MATERIAL RESPONSE OR ASTM B145 ALLOY 4B ASSN STD 3RD MATERIAL RESPONSE OR QQ-390 COMPOSITION 3 FED SPEC 4TH MATERIAL RESPONSE OVERALL
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
OPERATING PRESSURE125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
LEG LENGTH0.875 INCHES NOMINAL SECOND END IN
LEG LENGTH1.000 INCHES NOMINAL THIRD END IN
LEG LENGTH1.000 INCHES NOMINAL FIRST END IN
NOMINAL THREAD SIZE0.375 INCHES SECOND END IN
NOMINAL THREAD SIZE0.500 INCHES THIRD END IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 2
WW-P-460Reference document
Same NSN cross-reference
Reference document — Identification reference
4121 1/2X3/8X1/2Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4121-090?
4121-090 is a TEE,PIPE.
What parts can replace 4121-090?
There are 2 known substitutes for 4121-090: WW-P-460, 4121 1/2X3/8X1/2. Substitute compatibility should be verified for your specific system.
What is the NSN for 4121-090?
4121-090 is cataloged in the U.S. Government catalog under NSN 4730-01-070-3045. This indicates validated use in U.S. government and defense supply chains.
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