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401753 — SWITCH ASSEMBLY

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

401753: SWITCH ASSEMBLY.

The SWITCH ASSEMBLY is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, minor_width: 0.040 INCHES MINIMUM AND 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM0.050 INCHES MAXIMUM IN, switch_type: ROTARY, construction: SOLIDSOLID, overall_width: 6.938 INCHES NOMINAL IN, aperture_width: 0.910 INCHES NOMINAL0.910 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-044-4693, 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
401753
NSN: 4730-00-044-4693
NIINs: 000444693, 005518222, 011966137
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 28839 — TELEDYNE INDUSTRIES INC TELEDYNE POWER SYSTEMS DIV (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
minor_width0.040 INCHES MINIMUM AND 0.040 INCHES MINIMUM AND 0.050 INCHES MAXIMUM0.050 INCHES MAXIMUM IN
switch_typeROTARY
constructionSOLIDSOLID
overall_width6.938 INCHES NOMINAL IN
aperture_width0.910 INCHES NOMINAL0.910 INCHES NOMINAL IN
overall_length9.500 INCHES NOMINAL IN
aperture_length3.035 INCHES NOMINAL3.035 INCHES NOMINAL IN
mounting_methodFLANGE
special_markingsMAN,AUTO
style_designatorNON-CIRCULAR
controlling_agencyMARINE ELECTRIC RPD INC
NSN4730-00-044-4693
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 401753 · 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 10
2BG291Reference document
Same NSN cross-reference
Reference document — Secondary reference
078-00002-11Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE J531 4 130109NBReference document
Same NSN cross-reference
Reference document — Secondary reference
J531Reference document
Same NSN cross-reference
Reference document — Secondary reference
7338670Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
12Z6000-17Reference document
Same NSN cross-reference
Reference document — Secondary 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 401753?
401753 is a SWITCH ASSEMBLY.
What parts can replace 401753?
There are 10 known substitutes for 401753: 2BG291, 078-00002-11, SAE J531 4 130109NB and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 401753?
401753 is cataloged in the U.S. Government catalog under NSN 4730-00-044-4693. 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.