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Technical Data Sheet
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C1B — Technical Data Sheet

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— · MOTOR
WHAT YOU NEED TO KNOW
NEMA frame determines mounting bolt pattern TEFC for outdoor, ODP for dry indoor only
C-face vs foot-mount — different mounting
PRODUCT OVERVIEW

The RESISTOR,FIXED,COMPOSITION is a the manufacturer industrial component. Key specifications include material: SELENIUM, load_type: RESISTIVE, scale_type: WEIGHING, current_type: DC, excitor_type: SELF-EXCITED, housing_type: OPEN. This part is cataloged in the Federal Logistics Information System under NSN 6115-00-557-0274, 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
C1B
NSN: 6115-00-557-0274
FSC: 6115
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSELENIUM
load_typeRESISTIVE
scale_typeWEIGHING
current_typeDC
excitor_typeSELF-EXCITED
housing_typeOPEN
mounting_typePORTABLE
overall_width21.000 INCHES NOMINAL IN
terminal_typeSOLDER LUG
overall_height28.750 INCHES NOMINAL IN
overall_length54.000 INCHES NOMINAL IN
stack_quantity1
NSN6115-00-557-0274
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: C1B · OEM ⚠ VERIFY BEFORE ORDERING NEMA frame size determines mounting bolt pattern — not interchangeable. 56C ≠ 143T bolt pattern. C-face vs foot-mount vs flange — different mounting, same HP doesn't mean drop-in ✓ BROKER TIP TEFC = outdoor/washdown OK. ODP = dry indoor only. TENV = no external fan, explosion-proof areas. 1750 RPM = 4-pole (most common), 3450 RPM = 2-pole, 1150 RPM = 6-pole PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MOUNTING TYPE: BASE
•
DC WATTAGE RATING: 3.0 KILOWATTS
•
NONDEFINITIVE SPEC/STD DATA: CIB TYPE
•
EXCITOR TYPE: SELF-EXCITED
•
DOCUMENT CONTROLLING AGENCY: ARMY
•
CURRENT TYPE: DC
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT28.750 INCHES NOMINAL IN
MOUNTING TYPEBASE
DC WATTAGE RATING3.0 KILOWATTS
NONDEFINITIVE SPEC/STD DATACIB TYPE
EXCITOR TYPESELF-EXCITED
DOCUMENT CONTROLLING AGENCYARMY
OVERALL WIDTH21.000 INCHES NOMINAL IN
CURRENT TYPEDC
PRIME MOVER MANUFACTURER NAMEN/A
OVERALL LENGTH54.000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
16B8InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
304BInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
C43680InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
ARMY94-27302BTYPEC1BInterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
PD1N0V1955InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C1B?
C1B is a RESISTOR,FIXED,COMPOSITION.
What parts can replace C1B?
There are 5 known substitutes for C1B: 16B8, 304B, C43680 and 2 more. Substitute compatibility should be verified for your specific system.
Is C1B still available?
C1B is currently cancelled.
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Last verified: October 2026