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4X221 — 4X221

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

4X221: 4X221.

The 4X221 is a the manufacturer industrial component. Key specifications include material: PLASTIC, accuracy_in_percent: -3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES, scale_selection_method: SWITCH, furnished_items_and_quantity: CARRYING CASE 1,TEST LEADS 2. This part is cataloged in the U.S.

Government catalog under NSN 6625-00-951-4472, 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→ 4X221
NSN: 6625-00-951-4472
FSC: 6625 — Electrical and Electronic Properties Measuring and Testing Instruments
CAGE: 25795 — W.W. GRAINGER, INC. DIV GOVERNMENT SALES DIVISION (USA)
SPECIFICATIONS
materialPLASTIC
accuracy_in_percent-3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
scale_selection_methodSWITCH
furnished_items_and_quantityCARRYING CASE 1,TEST LEADS 2
NSN6625-00-951-4472
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 4X221 TITLE COMPONENT PN 4X221 MFR 4X221
KEY FEATURES
•
SCALE SELECTION METHOD: SWITCH
•
ACCURACY IN PERCENT: -3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
•
MATERIAL: PLASTIC
•
FURNISHED ITEMS AND QUANTITY: CARRYING CASE 1,TEST LEADS 2
TECHNICAL CHARACTERISTICS
SCALE SELECTION METHODSWITCH
ACCURACY IN PERCENT-3.0 TO 3.0 AT FULL SCALE SINGLE INDICATOR ALL RANGES
MATERIALPLASTIC
FURNISHED ITEMS AND QUANTITYCARRYING CASE 1,TEST LEADS 2
SUBSTITUTES & CROSS-REFERENCES 5
RS-3 PROReference document
Same NSN cross-reference
Reference document — Secondary reference
RS-3Reference document
Same NSN cross-reference
Reference document — Secondary reference
CAM270DReference document
Same NSN cross-reference
Reference document — Secondary reference
ME420UReference document
Same NSN cross-reference
Reference document — Secondary reference
CAM310DReference 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 4X221?
4X221 is a 4X221. It is classified as a MRO (MRO_GENERAL).
What parts can replace 4X221?
There are 5 known substitutes for 4X221: RS-3 PRO, RS-3, CAM270D and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4X221?
4X221 is cataloged in the U.S. Government catalog under NSN 6625-00-951-4472. 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.