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221-1004 — FLOW SWITCH,SPEC

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

221-1004: FLOW SWITCH,SPEC.

The FLOW SWITCH,SPEC is a the manufacturer industrial component. Key specifications include width: 1.250 INCHES NOMINAL IN, height: 0.750 INCHES NOMINAL IN, length: 2.000 INCHES NOMINAL IN, material: COPPER CORE CONDUCTOR SINGLE CONDUCTOR, tube_type: TRIODE, timer_type: ELECTRICAL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-499-9837, 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
MRO→ MRO_GENERAL→ 221-1004
NSN: 4730-00-499-9837
NIINs: 004999837, 015976919
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
width1.250 INCHES NOMINAL IN
height0.750 INCHES NOMINAL IN
length2.000 INCHES NOMINAL IN
materialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
tube_typeTRIODE
timer_typeELECTRICAL
body_length2.250 INCHES MAXIMUM IN
control_typeKNOB
current_typeAC
hole_diameter0.328 INCHES NOMINAL IN
overall_depth2.000 INCHES NOMINAL IN
overall_width3.500 INCHES NOMINAL IN
NSN4730-00-499-9837
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 221-1004 · 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 6
7077Reference document
Same NSN cross-reference
Reference document — Secondary reference
16F08Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
36985Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
104VR1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
008853TSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
016-90004-79Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 221-1004?
221-1004 is a FLOW SWITCH,SPEC. It is classified as a MRO (MRO_GENERAL).
What parts can replace 221-1004?
There are 6 known substitutes for 221-1004: 7077, 16F08, 36985 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 221-1004?
221-1004 is cataloged in the U.S. Government catalog under NSN 4730-00-499-9837. This indicates validated use in U.S. government and defense supply chains.
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