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Technical Data Sheet
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46683 — ADAPTER,STRAIGHT,PIPE TO TUBE

✓ Government record, cited
Lindy · HOSE FITTING
PRODUCT OVERVIEW

46683: ADAPTER,STRAIGHT,PIPE TO TUBE.

- Compatible with all standard fibre optic equipment and connectors - Full duplex 50/125µm type fibre - Zip twin, LS0H, Multimode cable - Ceramic connectors ensure low signal loss and high reliability - Total immunity to electrical and electromagnetic interference (EMI) - Insertion Loss: - RoHS Compliant This part is cataloged in the U.S. Government catalog under NSN 4730-00-278-3725, 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
46683
NSN: 4730-00-278-3725
NIINs: 002783725, 008385254
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialSTEEL ALLOY OVERALL
point_typeSPLIT
point_angle135.0 DEGREES NOMINAL
shank_styleSTRAIGHT ROUND
flute_length2.312 INCHES NOMINAL IN
flute_quantity2
overall_length3.500 INCHES NOMINAL IN
shank_diameter0.185 INCHES NOMINAL IN
special_featuresJOBBERS LG; WIRE SIZE 13
cutting_end_styleGENERAL PURPOSE
nominal_cutting_diameter0.1850 INCHES IN
cutting_rotation_directionRIGHT-HAND
NSN4730-00-278-3725
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 46683 · Lindy ⚠ 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 9
25KL42Reference document
Same NSN cross-reference
Reference document — Secondary reference
0101-6-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
13217E2203-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
5404-6Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
FZ1617Reference document
Same NSN cross-reference
Reference document — Secondary reference
6-6 140137CReference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 46683?
46683 is a ADAPTER,STRAIGHT,PIPE TO TUBE manufactured by Lindy.
What parts can replace 46683?
There are 9 known substitutes for 46683: 25KL42, 0101-6-6, 13217E2203-2 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 46683?
46683 is cataloged in the U.S. Government catalog under NSN 4730-00-278-3725. 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.