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103756R1 — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

103756R1: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include length: 0.170 INCHES NOMINAL IN, material: COPPER ALLOY, design_type: TUBULAR, thread_class: 2A LOCATION NOT OTHERWISE SPECIFIED A, thread_length: 0.095 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, thread_series: UNF LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-740-9137, 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
103756R1
NSN: 4730-00-740-9137
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 89346 — NAVISTAR INTL CORP TRUCK BR OHIO PLANT (USA)
SPECIFICATIONS
length0.170 INCHES NOMINAL IN
materialCOPPER ALLOY
design_typeTUBULAR
thread_class2A LOCATION NOT OTHERWISE SPECIFIED A
thread_length0.095 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
thread_seriesUNF LOCATION NOT OTHERWISE SPECIFIED
orifice_diameter0.052 INCHES NOMINAL IN
outside_diameter0.188 INCHES NOMINAL IN
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
thread_provisionTHREADED LOCATION NOT OTHERWISE SPECIFIED
thread_size_designator0.190-32 LOCATION NOT OTHERWISE SPECIFIED
NSN4730-00-740-9137
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 103756R1 · 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
•
LENGTH: 0.170 INCHES NOMINAL IN
•
THREAD PROVISION: THREADED LOCATION NOT OTHERWISE SPECIFIED
•
DESIGN TYPE: TUBULAR
•
THREAD SERIES: UNF LOCATION NOT OTHERWISE SPECIFIED
•
THREAD LENGTH: 0.095 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
OUTSIDE DIAMETER: 0.188 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
•
THREAD SIZE DESIGNATOR: 0.190-32 LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS
LENGTH0.170 INCHES NOMINAL IN
THREAD PROVISIONTHREADED LOCATION NOT OTHERWISE SPECIFIED
DESIGN TYPETUBULAR
THREAD SERIESUNF LOCATION NOT OTHERWISE SPECIFIED
THREAD LENGTH0.095 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE DIAMETER0.188 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
THREAD SIZE DESIGNATOR0.190-32 LOCATION NOT OTHERWISE SPECIFIED
THREAD CLASS2A LOCATION NOT OTHERWISE SPECIFIED A
MATERIALCOPPER ALLOY
SUBSTITUTES & CROSS-REFERENCES 3
22R53-52Reference document
Same NSN cross-reference
Reference document — Secondary reference
7409137Reference document
Same NSN cross-reference
Reference document — Secondary reference
47145Same 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 103756R1?
103756R1 is a RESTRICTOR,FLUID FLOW.
What parts can replace 103756R1?
There are 3 known substitutes for 103756R1: 22R53-52, 7409137, 47145. Substitute compatibility should be verified for your specific system.
What is the NSN for 103756R1?
103756R1 is cataloged in the U.S. Government catalog under NSN 4730-00-740-9137. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.