NSN 5905-00-491-2638, 5905004912638
Cancelled -> Replaced by 5905010862750

Federal Supply Classification: FSC 5905 - Resistors
National Item Identification Number: NIIN 004912638
Codification Country: United States
Item Name Code: INC 05311
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

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DLMS^® Summary

National Stock Number 5905-00-491-2638

National Stock Number (NSN) 5905-00-491-2638, or NIIN 004912638, (resistor,fixed,film) was assigned October 2, 1970 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5905010862750.

There are 28 manufacturer part numbers associated with this NSN. 10 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 17 suppliers. Today, 11 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

This part number has not been procured by the US Government in over 5 years.

Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 1991, this NSN's acquisition method was noted as: Not established. Not established.

This NSN is assigned to Item Name Code (INC) 05311. [A RESISTOR WHOSE OHMIC VALUE CANNOT BE ADJUSTED OR VARIED. THE RESISTANCE ELEMENT CONSISTS OF EITHER A THIN LAYER OF CONDUCTIVE MATERIAL, CONTAINING EITHER BINDERS OR INSULATING MATERIALS, DEPOSITED ON AN INSULATED FORM; OR AN ALLOY OF METAL AND CERAMIC MATERIALS, USUALLY FUSED TO AN INSULATED FORM. OPPOSITION TO THE FLOW OF CURRENT IS AN INHERENT PROPERTY OF THE MATERIALS USED AND IS MANIFEST BY THE HEAT DISSIPATION IN THE RESISTOR. SEE ALSO ATTENUATOR, FIXED AND RESISTOR, FIXED, COMPOSITION. EXCLUDES:CARBON COMPOSITION TYPE RESISTORS.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5905004912638 contains an unknown precious metal.

This NSN is associated to Schedule B 8533100042: fixed carbon resistors, composition or film type, designed for surface mounting, having two terminals. The Schedule B End Use is listed as electric apparatus.

This information was last updated on Aug 01, 2025.

Technical Characteristics

RESISTANCE TOLERANCE IN PERCENT: (AAPQ) -2.000/+2.000
AMBIENT TEMP AT FULL RATED POWER: (AEHY) 70.0 DEG CELSIUS
AMBIENT TEMP AT FULL RATED POWER: (AEHY) 70.0 CELSIUS
AMBIENT TEMP IN DEG CELSIUS AT ZERO PERCENT RATED POWER: (AAQG) 150.0
BODY DIAMETER: (ABPM) 0.090 INCHES NOMINAL
BODY LENGTH: (ADAQ) 0.250 INCHES NOMINAL
ELECTRICAL RESISTANCE: (AAPP) 2.700 KILOHMS
INCLOSURE TYPE: (AKNA) ENCAPSULATED
POWER DISSIPATION RATING IN WATTS: (AEFB) 0.250 FREE AIR
RELIABILITY FAILURE RATE LEVEL IN PERCENT: (AARH) 0.010
RELIABILITY INDICATOR: (AARG) ESTABLISHED
RESISTANCE TOLERANCE IN PERCENT: (AAPQ) -2.000 TO 2.000
SPECIFICATION/STANDARD DATA: (ZZZK) 81349-MIL-R-39017/1 GOVERNMENT SPECIFICATION
STYLE DESIGNATOR: (STYL) AXIAL TERMINAL EACH END
TEMP RANGE OF TEMP COEFFICIENT IN DEG CELSIUS: (AAQH) -55.0 TO 150.0
TEMP COEFFICIENT OF RESISTANCE IN PPM PER DEG CELSIUS: (AAPE) -100.0 TO 100.0
TERMINAL LENGTH: (ABJT) 1.500 INCHES NOMINAL
TERMINAL TYPE: (CSCF) WIRE LEAD
TEST DATA DOCUMENT: (TEST) 81349-MIL-R-39017 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
UNPACKAGED UNIT WEIGHT: (PKWT) 0.500 GRAMS
TEMP COEFFICIENT OF RESISTANCE IN PPM PER DEG CELSIUS: (AAPE) -100.0/+100.0
TEMP RANGE OF TEMP COEFFICIENT IN DEG CELSIUS: (AAQH) -55.0/+150.0
INCLOSURE METHOD: (AAQZ) ENCAPSULATED
AMBIENT TEMP IN DEG CELSIUS AT FULL RATED POWER: (AAQF) 70.0
TERMINAL TYPE: (AARB) WIRE LEAD