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MS51953-41 — RELAY,ELECTROMAGNETIC

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS51953-41: RELAY,ELECTROMAGNETIC.

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, leg_length: 3.0 INCHES NOMINAL ALL ENDS IN, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: THREADED INTERNAL, surface_treatment: PHOSPHATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-287-0963, 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
MS51953-41
NSN: 4730-00-287-0963
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
leg_length3.0 INCHES NOMINAL ALL ENDS IN
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorTHREADED INTERNAL
surface_treatmentPHOSPHATE OVERALL
thread_tolerance_class0.125 SHOW ME THIS EXTERNAL ALL ENDS
end_item_identificationE28 ARRESTING GEAR
media_for_which_designedFLUID SINGLE RESPONSE
nominal_outside_diameter2.375 INCHES ALL ENDS IN
thread_series_designatorNPT ALL ENDS
nominal_width_across_flats12.0 INCHES ALL ENDS IN
NSN4730-00-287-0963
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS51953-41 · 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 3
61028Reference document
Same NSN cross-reference
Reference document — Secondary reference
08T03695-1102Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
ASTM-A733Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS51953-41?
MS51953-41 is a RELAY,ELECTROMAGNETIC.
What parts can replace MS51953-41?
There are 3 known substitutes for MS51953-41: 61028, 08T03695-1102, ASTM-A733. Substitute compatibility should be verified for your specific system.
What is the NSN for MS51953-41?
MS51953-41 is cataloged in the U.S. Government catalog under NSN 4730-00-287-0963. This indicates validated use in U.S. government and defense supply chains.
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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.