NSN 6610-00-774-5656, 6610007745656
ALTIMETER,PRESSURE

Federal Supply Classification: FSC 6610 - Flight Instruments
National Item Identification Number: NIIN 007745656
Codification Country: United States
Item Name Code: INC 03386
Criticality: (Y) This item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (Y) Information is in the Hazardous Materials Information Resource System (HMIRS).

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DLMS^® Summary

National Stock Number 6610-00-774-5656

National Stock Number (NSN) 6610-00-774-5656, or NIIN 007745656, (altimeter,pressure) was assigned January 1, 1962 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 4 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is 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.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 02, 2009, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is controlled by QPL procedures. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 03386. [A BAROMETRIC TYPE INSTRUMENT WHICH MEASURES ALTITUDE ABOVE A GIVEN DATUM PLANE WHEN ADJUSTED TO THE CORRECT ALTIMETER SETTING NUMBER. EXCLUDES:ALTIMETER, SURVEYING.]. This item does not have a nuclear hardened feature but does have other critical feature(s) such as tolerance, fit restriction or application. Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 6610007745656 does not contain precious metals.

This NSN is associated to Schedule B 9014900000: parts & accessories for direction finding compasses and other navigational instruments and appliances. The Schedule B End Use is listed as marine engines, parts. NAICS classification category 334511: search, detection, navigation, guidance, aeronautical, and nautical system and instrument manufacturing.

This information was last updated on Jul 01, 2025.

Technical Characteristics

SCALE MARKING AND SURFACE FINISH: (ABFN) LETTERS FLUORESCENT AND NUMERALS FLUORESCENT AND LINED INCREMENTS FLUORESCENT
SCALE MARKING AND SURFACE FINISH: (ASPG) NUMERALS FLUORESCENT
MOUNTING METHOD: (AXGY) BEZEL
SCALE RANGE: (BBHK) 0 TO 100 FT,0 TO 10,000 FT,0 TO 80.000 FT,28.1 TO 31.0 IN MERCURY
UNABLE TO DECODE: (BBHK) UNABLE TO DECODE
SCALE NAME: (AQFZ) ALTITUDE AND ALTITUDE AND ALTITUDE AND BAROMETRIC PRESSURE
UNABLE TO DECODE: (ASPG) UNABLE TO DECODE
SCALE MARKING AND SURFACE FINISH: (ASPG) LETTERS FLUORESCENT
END ITEM IDENTIFICATION: (AGAV) COMMON AIRCRAFT INSTRUMENTS
CRITICALITY CODE JUSTIFICATION: (CRTL) AGAV
KNOB PURPOSE: (ASSL) FOR SETTING BAROMETRIC SCALE
KNOB QUANTITY: (ASSK) 1
OVERALL DEPTH: (ABFY) 5.500 INCHES NOMINAL
OVERALL DIAMETER: (ADAV) 3.250 INCHES NOMINAL
MECHANICAL CONNECTION QUANTITY: (ASSB) 1
MECHANICAL CONNECTION SIZE: (ASSC) 1/8 IN.
MECHANICAL CONNECTION TYPE: (ASSD) INTERNAL PIPE
MOUNTING METHOD: (AXGY) THREADED BEZEL
NONDEFINITIVE SPEC/STD DATA: (ZZZT) AAU-8/A TYPE
POINTER FINISH: (ASPD) FLUORESCENT
POINTER QUANTITY: (ASPC) 4
SCALE NAME: (AQFZ) ALTITUDE AND BAROMETRIC PRESSURE
SCALE QUANTITY: (APSJ) 4
SCALE SMALLEST INCREMENT GRADUATION: (BBHL) 20 FT,200 FT,2000 FT,0.020 IN.
UNABLE TO DECODE: (ABFN) UNABLE TO DECODE AND UNABLE TO DECODE AND UNABLE TO DECODE
SCALE MARKING AND SURFACE FINISH: (ASPG) LINED INCREMENTS FLUORESCENT