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PartsTable / COMPONENT / 43-4-3-1
43-4-3-1 ✓ 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 diameter: 1.000 INCHES NOMINAL IN, material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, cut_length: 2.000 INCHES NOMINAL IN, shank_type: WELDON, design_form: SINGLE END, flute_design: HELICAL. This part is cataloged in the Federal Logistics Information System (FLIS) 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
43-4-3-1
NSN: 4730-00-358-3620
FSC: 4730
CAGE: 28953 — RIX INDUSTRIES (USA)
SPECIFICATIONS
diameter1.000 INCHES NOMINAL IN
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
cut_length2.000 INCHES NOMINAL IN
shank_typeWELDON
design_formSINGLE END
flute_designHELICAL
inclosure_typePARTIALLY INCLOSED, DOUBLE SHELL
overall_height0.296 INCHES MINIMUM AND 0.299 INCHES MAXIMUM IN
overall_length4.500 INCHES NOMINAL IN
shank_diameter1.000 INCHES NOMINAL IN
helix_directionRIGHT-HAND
inside_diameter0.051 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN
NSN4730-00-358-3620
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 43-4-3-1 · 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 17
43431Interchangeable
interchangeable cross-reference
interchangeable
5203-4Interchangeable
interchangeable cross-reference
interchangeable
G57SB005Interchangeable
interchangeable cross-reference
interchangeable
30979Interchangeable
interchangeable cross-reference
interchangeable
12283378Interchangeable
interchangeable cross-reference
interchangeable
71320Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 43-4-3-1?
43-4-3-1 is a STRAINER ELEMENT,SEDIMENT.
What parts can replace 43-4-3-1?
There are 17 known substitutes for 43-4-3-1: 43431, 5203-4, G57SB005 and 14 more. Substitute compatibility should be verified for your specific system.
Is 43-4-3-1 still available?
43-4-3-1 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: July 2026