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PartsTable / COMPONENT / 633D7657 PIECE 35
633D7657 PIECE 35 ✓ 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 RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 706, design_type: PLATE, outside_diameter: 0.562 INCHES NOMINAL IN, special_features: STAGE 4, thread_provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-197-7778, 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
633D7657 PIECE 35
NSN: 4730-01-197-7778
FSC: 4730
CAGE: 09647 — AQUA-CHEM, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY 706
design_typePLATE
outside_diameter0.562 INCHES NOMINAL IN
special_featuresSTAGE 4
thread_provisionUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
NSN4730-01-197-7778
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 633D7657 PIECE 35 · 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
•
DESIGN TYPE: PLATE
•
THREAD PROVISION: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED
•
MATERIAL: COPPER ALLOY 706
•
OUTSIDE DIAMETER: 0.562 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
DESIGN TYPEPLATE
THREAD PROVISIONUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
MATERIALCOPPER ALLOY 706
SPECIAL FEATURESSTAGE 4
OUTSIDE DIAMETER0.562 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
RE13A549ATYPE482421Interchangeable
interchangeable cross-reference
interchangeable
AX1094Interchangeable
interchangeable cross-reference
interchangeable
03101390Interchangeable
interchangeable cross-reference
interchangeable
48245Interchangeable
interchangeable cross-reference
interchangeable
77R3LR1JInterchangeable
interchangeable cross-reference
interchangeable
77R3LR1MILL6085AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 633D7657 PIECE 35?
633D7657 PIECE 35 is a RESTRICTOR,FLUID FLOW.
What parts can replace 633D7657 PIECE 35?
There are 26 known substitutes for 633D7657 PIECE 35: RE13A549ATYPE482421, AX1094, 03101390 and 23 more. Substitute compatibility should be verified for your specific system.
Is 633D7657 PIECE 35 still available?
633D7657 PIECE 35 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026