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43FS1-2 — MODIFICATION KIT,SONAR EQUIPMENT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

43FS1-2: MODIFICATION KIT,SONAR EQUIPMENT.

MODIFICATION KIT,SONAR EQUIPMENT. Key specifications include shape: IRREGULAR, material: PLASTIC POLYCARBONATE LENS, body_width: 1.750 INCHES NOMINAL IN, bore_shape: STRAIGHT, glass_type: FLINT, head_style: HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-012-0141, 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
43FS1-2
NSN: 4730-00-012-0141
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30327 — IMPERIAL (USA)
SPECIFICATIONS
shapeIRREGULAR
materialPLASTIC POLYCARBONATE LENS
body_width1.750 INCHES NOMINAL IN
bore_shapeSTRAIGHT
glass_typeFLINT
head_styleHEXAGON
lens_colorYELLOW
body_height2.250 INCHES NOMINAL IN
body_length3.500 INCHES NOMINAL IN
head_height0.125 INCHES NOMINAL IN
point_styleOVAL
closure_typeSCREW CAP
NSN4730-00-012-0141
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 43FS1-2 · 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
SUBSTITUTES & CROSS-REFERENCES 8
J512Reference document
Same NSN cross-reference
Reference document — Secondary reference
41FS-8Reference document
Same NSN cross-reference
Reference document — Secondary reference
805678Reference document
Same NSN cross-reference
Reference document — Secondary reference
D9484-55-51Reference document
Same NSN cross-reference
Reference document — Secondary reference
41FS1-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE J512 8 010110BReference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 43FS1-2?
43FS1-2 is a MODIFICATION KIT,SONAR EQUIPMENT.
What parts can replace 43FS1-2?
There are 8 known substitutes for 43FS1-2: J512, 41FS-8, 805678 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 43FS1-2?
43FS1-2 is cataloged in the U.S. Government catalog under NSN 4730-00-012-0141. 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.