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Technical Data Sheet
PartsTable / MRO / 816421
816421 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The RESISTOR,VOLTAGE SENSITIVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, special_features: VALVE, CONTROL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-257-2100, 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→ 816421
NSN: 4730-00-257-2100
FSC: 4730
CAGE: 02280 — AMERICAN HOIST AND DERRICK CO
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
special_featuresVALVE, CONTROL
NSN4730-00-257-2100
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 816421 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
D32Interchangeable
interchangeable cross-reference
interchangeable
2765-18PCF1866Interchangeable
interchangeable cross-reference
interchangeable
346-4801-484681ALT8PCF1866Interchangeable
interchangeable cross-reference
interchangeable
D1GF04-04GFXGF12Interchangeable
interchangeable cross-reference
interchangeable
54232Interchangeable
interchangeable cross-reference
interchangeable
GGG-T-70Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 816421?
816421 is a RESISTOR,VOLTAGE SENSITIVE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 816421?
There are 18 known substitutes for 816421: D32, 2765-18PCF1866, 346-4801-484681ALT8PCF1866 and 15 more. Substitute compatibility should be verified for your specific system.
Is 816421 still available?
816421 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026