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387121 — ADAPTER,STRAIGHT,FLANGE TO FLANG

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

387121: ADAPTER,STRAIGHT,FLANGE TO FLANG.

ADAPTER,STRAIGHT,FLANGE TO FLANG. Key specifications include material: BRONZE BODY, flange_shape: ROUND ALL ENDS, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN,OPTIONAL END(PIPE) ALL ENDS, special_features: THIS IS A REDUCED PRESSURE ZONE BACKFLOW PREVENTER VALVE OF MODULAR DESIGN, style_designator: ANGLE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-425-6599, 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
387121
NSN: 4730-01-425-6599
NIINs: 014256599, 014732192
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0NCC5 — WELCH VACUUM TECHNOLOGY INC (USA)
SPECIFICATIONS
materialBRONZE BODY
flange_shapeROUND ALL ENDS
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN,OPTIONAL END(PIPE) ALL ENDS
special_featuresTHIS IS A REDUCED PRESSURE ZONE BACKFLOW PREVENTER VALVE OF MODULAR DESIGN
style_designatorANGLE
flange_face_designRECESSED STRAIGHT ALL ENDS
operating_pressure175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
flow_control_deviceBALL
nominal_thread_size0.750 INCHES ALL ENDS IN
maximum_operating_temp140.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length1.570 INCHES IN
NSN4730-01-425-6599
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 387121 · 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
•
FLANGE SHAPE: ROUND ALL ENDS
•
FLANGE FACE DESIGN: RECESSED STRAIGHT ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.570 INCHES IN
•
CONNECTION TYPE: FLANGE ALL ENDS
•
MEDIA FOR WHICH DESIGNED: VACUUM SINGLE RESPONSE
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND ALL ENDS
FLANGE FACE DESIGNRECESSED STRAIGHT ALL ENDS
NOMINAL OVERALL LENGTH1.570 INCHES IN
CONNECTION TYPEFLANGE ALL ENDS
MEDIA FOR WHICH DESIGNEDVACUUM SINGLE RESPONSE
END ITEM IDENTIFICATIONELECTRONIC WAREFARE EQUIPMENT, NON-AIRBORNEELECTRONIC WAREFARE EQUIPMENT, NON-AIRBORNE
MATERIALSTEEL CORROSION RESISTING OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
AC50300NW016Same 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 387121?
387121 is a ADAPTER,STRAIGHT,FLANGE TO FLANG.
What parts can replace 387121?
There is 1 known substitute for 387121: AC50300NW016. Substitute compatibility should be verified for your specific system.
What is the NSN for 387121?
387121 is cataloged in the U.S. Government catalog under NSN 4730-01-425-6599. This indicates validated use in U.S. government and defense supply chains.
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