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43-403-1 — Technical Data Sheet

✓ 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 STRAINER ELEMENT,SEDIMENT is a the manufacturer industrial component. Key specifications include width: 2.500 INCHES NOMINAL IN, length: 4.250 INCHES NOMINAL IN, material: STEEL COMP 631, thickness: 5.0 MILLIMETERS NOMINAL MM, overall_width: 0.750 INCHES NOMINAL IN, overall_height: 0.154 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System under NSN 4730-00-358-3620, 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
43-403-1
NSN: 4730-00-358-3620
FSC: 4730
CAGE: 28953 — RIX INDUSTRIES (USA)
SPECIFICATIONS
width2.500 INCHES NOMINAL IN
length4.250 INCHES NOMINAL IN
materialSTEEL COMP 631
thickness5.0 MILLIMETERS NOMINAL MM
overall_width0.750 INCHES NOMINAL IN
overall_height0.154 INCHES NOMINAL IN
overall_length2.240 INCHES NOMINAL IN
outside_diameter0.350 INCHES NOMINAL IN
special_featuresLAMINATING LUGGAGE TAG HOT POUCH; GLOSSY FINISH
style_designatorDRILLED, FLAT
features_providedNOTCHED SLIDE
surface_treatmentPASSIVATE
NSN4730-00-358-3620
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 43-403-1 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
43431InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5203-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
G57SB005InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
30979InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
12283378InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
71320InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 43-403-1?
43-403-1 is a STRAINER ELEMENT,SEDIMENT.
What parts can replace 43-403-1?
There are 16 known substitutes for 43-403-1: 43431, 5203-4, G57SB005 and 13 more. Substitute compatibility should be verified for your specific system.
Is 43-403-1 still available?
43-403-1 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: October 2026