PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 7771-3/8 IN
7771-3/8 IN ✓ 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

The 7771-3/8 IN is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-364-8791, 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
7771-3/8 IN
NSN: 4730-01-364-8791
FSC: 4730
CAGE: 79227 — WATTS REGULATOR COMPANY (USA)
SPECIFICATIONS
Part Number7771-3/8 IN
NSN4730-01-364-8791
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 7771-3/8 IN · 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
•
OPERATING PRESSURE: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
•
FIRST INTAKE THREAD SERIES DESIGNATOR: NPT
•
MEDIA FOR WHICH DESIGNED: WATER
•
STYLE DESIGNATOR: Y STRAINER W/THREADED COVER
•
DISTANCE FROM BOTTOM OF BODY TO CENTER OF INLET: 1.656 INCHES NOMINAL IN
•
FIRST INTAKE THREAD DIRECTION: RIGHT-HAND
•
FIRST DISCHARGE CONNECTION RELATIONSHIP TO INTAKE CONNECTION: IDENTICAL TO FIRST INTAKE CONNECTION
•
MATERIAL: STEEL CORROSION RESISTING FILTERING MEDIUM
TECHNICAL CHARACTERISTICS (FLIS)
OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LBS
FIRST INTAKE THREAD SERIES DESIGNATORNPT
MEDIA FOR WHICH DESIGNEDWATER
STYLE DESIGNATORY STRAINER W/THREADED COVER
DISTANCE FROM BOTTOM OF BODY TO CENTER OF INLET1.656 INCHES NOMINAL IN
FIRST INTAKE THREAD DIRECTIONRIGHT-HAND
FIRST DISCHARGE CONNECTION RELATIONSHIP TO INTAKE CONNECTIONIDENTICAL TO FIRST INTAKE CONNECTION
MATERIALSTEEL CORROSION RESISTING FILTERING MEDIUM
FIRST INTAKE CONNECTION TYPETHREADED INTERNAL PIPE LINE
FILTERING MEDIA DESIGNMESH SINGLE FILTERING MEDIA RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
F3063Interchangeable
interchangeable cross-reference
interchangeable
7771Interchangeable
interchangeable cross-reference
interchangeable
391441Interchangeable
interchangeable cross-reference
interchangeable
5CC98253Interchangeable
interchangeable cross-reference
interchangeable
106163Interchangeable
interchangeable cross-reference
interchangeable
SC-C-98253Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7771-3/8 IN?
7771-3/8 IN is a 7771-3/8 IN.
What parts can replace 7771-3/8 IN?
There are 25 known substitutes for 7771-3/8 IN: F3063, 7771, 391441 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7771-3/8 IN?
7771-3/8 IN is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-364-8791. 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