National Stock Number (NSN) Output Data
NSN:
NIIN:
Item Name:
RESISTOR , FIXED , WIRE WOUND , INDUCT
Definition:
INC 37403 REINSTATED ON 010303~A RESISTOR WHOSE OHMIC VALUE CANNOT BE ADJUSTED OR VARIED. THE RESISTANCE ELEMENT CONSISTS OF HIGH RESISTANCE WIRE (OR RIBBON) EITHER WOUND ON AN INSULATED FORM OR CONSTRUCTED SO AS TO BE SELF-SUPPORTING. THE ITEM MUST HAVE INHERENT CHARACTERISTICS OF INDUCING SELF-INDUCTANCE. OPPOSITION TO CURRENT FLOW IS AN INHERENT PROPERTY OF THE RESISTANCE WIRE AND IS MANIFESTED BY THE HEAT DISSIPATION IN THE RESISTOR. EXCLUDES SUPPRESSOR, IGNITION INTERFERENCE. SEE ALSO RESISTOR (1), FIXED, WIRE WOUND, NONINDUCTIVE.
Reference/Part Number
| Part Number | CAGE | Status | RNCC | RNVC | DAC | RNAAC | MSDS | SADC |
|---|---|---|---|---|---|---|---|---|
| A3318-4 | 03538 | A | 3 | 2 | 5 | ZZ | ||
| A3318-4 | 54497 | R | 3 | 9 | 1 | TX |
CAGE Information
| Code | Company |
|---|---|
| 03538 | LOCKHEED MARTIN CORPORATION DBA MS2 |
| 54497 | MARTIN MARIETTA TECHNOLOGIES INC SUB |
Federal Supply Class
Title
RESISTORS
Inclusions:
INCLUDES VARISTORS; RESISTIVE BALLAST TUBES; RHEOSTATS; RESISTOR NETWORKS; RESISTOR MOUNTING HARDWARE; THERMISTORS.
Exclusions:
EXCLUDES RESISTANCE WIRE.
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| ADAU | BODY HEIGHT | 0.625 INCHES NOMINAL |
| AEFB | POWER DISSIPATION RATING IN WATTS | 50.000 HEAT SINK |
| AFWW | TERMINAL WIDTH | 0.155 INCHES MINIMUM |
| AAQD | HEAT SINK HEIGHT | 2.000 INCHES |
| ADAT | BODY WIDTH | 0.625 INCHES NOMINAL |
| AAPE | TEMP COEFFICIENT OF RESISTANCE IN PPM PER DEG CELSIUS | -30.0/+30.0 |
| BYML | MOUNTING HOLE SIZE | 0.125 INCHES NOMINAL |
| AARG | RELIABILITY INDICATOR | NOT ESTABLISHED |
| AAQB | HEAT SINK WIDTH | 5.000 INCHES |
| AAQA | HEAT SINK LENGTH | 7.000 INCHES |
| STYL | STYLE DESIGNATOR | AXIAL TERMINAL (S) |
| AAQZ | INCLOSURE METHOD | ENCASED |
| AAPZ | HEAT SINK MATERIAL | ALUMINUM ALLOY |
| AAQF | AMBIENT TEMP IN DEG CELSIUS AT FULL RATED POWER | 25.0 |
| AAQH | TEMP RANGE OF TEMP COEFFICIENT IN DEG CELSIUS | -55.0/+275.0 |
| AAPP | ELECTRICAL RESISTANCE | 69.800 OHMS |
| ADAQ | BODY LENGTH | 1.968 INCHES NOMINAL |
| AAPQ | RESISTANCE TOLERANCE IN PERCENT | -1.000/+1.000 |
| AEBY | DISTANCE BETWEEN CENTERLINES OF MOUNTING FACILITIES PARALLEL TO BODY LENGTH | 1.563 INCHES NOMINAL |
| AAQE | HEAT SINK THICKNESS | 0.040 INCHES |
| AAQG | AMBIENT TEMP IN DEG CELSIUS AT ZERO PERCENT RATED POWER | 275.0 |
| AARB | TERMINAL TYPE | TAB, SOLDER LUG |
| ABJT | TERMINAL LENGTH | 0.375 INCHES NOMINAL |