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553069 — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

553069: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4730-00-972-8401, 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
553069
NSN: 4730-00-972-8401
NIINs: 009728401, 014275385
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 1UVT5 — BRP US INC (USA)
SPECIFICATIONS
special_featuresBRAND NAME DESCRIPTION SUPER MARATHON - 20 GAUGE;ADDITIONAL ITEM INFORMATION SSM 49 X 64-5/8 X .020,C;REQUIRED MINIMUM ORDER QUANTITY 1;REQUIRED MULTIPLE ORDER QUANTITY 1
NSN4730-00-972-8401
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 553069 · 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: 0.059 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
•
THREAD PROVISION: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED
•
DESIGN TYPE: PLATE
•
OUTSIDE DIAMETER: 0.421 INCHES NOMINAL IN
•
MATERIAL: COPPER ALLOY
•
ORIFICE DIAMETER: 0.043 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
LENGTH0.059 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
THREAD PROVISIONUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
DESIGN TYPEPLATE
OUTSIDE DIAMETER0.421 INCHES NOMINAL IN
SPECIAL FEATURES0.005 IN.MIN,0.019 INMAX BY 45 DEG CHAMFER OUTER EDGES OF DISC IN
MATERIALCOPPER ALLOY
ORIFICE DIAMETER0.043 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
1118PC187NReference document
Same NSN cross-reference
Reference document — Secondary reference
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 553069?
553069 is a RESTRICTOR,FLUID FLOW.
What parts can replace 553069?
There is 1 known substitute for 553069: 1118PC187N. Substitute compatibility should be verified for your specific system.
What is the NSN for 553069?
553069 is cataloged in the U.S. Government catalog under NSN 4730-00-972-8401. 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.