PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0691-7Fan,centrifugal

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 4140-00-829-8765 · FSC 4140 · No Item Name Available
Verified by PartsTable
NSN 4140-00-829-8765 — this item is cataloged by the U.S. Government under National Stock Number 4140-00-829-8765. Primary manufacturer part number: 0691-7.
Features
  • Fan,centrifugal — FSC 4140
  • Diameter: 3.000 INCHES NOMINAL IN
  • Surface Treatment: ENAMEL HOUSING OUTSIDE
  • Static Pressure at Specified Air Flow Rate: ERR-060
  • Mounting Facility Type and Quantity: 4 THREADED HOLE(S)
  • Prime Mover Drive Shaft Bearing Type: BALL
  • Drive Type: DIRECT
  • Outlet Inside Height: 2.563 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Fan,centrifugal, cataloged under National Stock Number 4140-00-829-8765, is classified within Federal Supply Class 4140 (No Item Name Available) of the Refrigeration, AC, and Air Circulating Equipment group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4140-00-829-8765
Primary Part Number0691-7
Item NameFan,centrifugal
FSC / FSG4140 / 41 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusCANCELLED
Diameter3.000 INCHES NOMINAL IN
Surface TreatmentENAMEL HOUSING OUTSIDE
Static Pressure at Specified Air Flow RateERR-060
Mounting Facility Type and Quantity4 THREADED HOLE(S)
Prime Mover Drive Shaft Bearing TypeBALL
Drive TypeDIRECT
Outlet Inside Height2.563 INCHES NOMINAL IN
Operating Speed at Rated Capacity in RPM5200.0
Air Flow Rate117.0 CUBIC FEET PER MINUTE NOMINAL
Outlet Inside Width2.031 INCHES NOMINAL IN
PhaseSINGLE
Voltage in Volts and Current Type115.0 AC
Rotation Direction for Which DesignedCLOCKWISE
Height5.562 INCHES NOMINAL IN
Outlet LocationBOTTOM AND TOP
Inclosure TypeFULLY INCLOSED
Prime Mover TypeELECTRIC MOTOR
Electrical Connection TypeWIRE LEAD
Discharge DirectionANGULAR DOWN AND ANGULAR UP AND HORIZONTAL AND VERTICAL DOWN AND VERTICAL UP
Style DesignatorFIXED, RECTANGULAR OUTLETS
MaterialSTEEL OVERALL
Surface TreatmentENAMEL HOUSING INSIDE
Speed AdjustmentsSINGLE SPEED
Stage Quantity1
Width6.656 INCHES NOMINAL IN
Length5.219 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
3010-00-174-5633B321 INTERCHANGEABLE
Coupling,shaft,flexible
Charles Bond Company Dba Christiana Machine Company
3455-00-194-055058-10071 INTERCHANGEABLE
Cutter,milling,side
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5342-00-200-3757K7107441REV2PT1 INTERCHANGEABLE
Mount,resilient,weapon System
General Electric Company
3020-00-755-1141511717 INTERCHANGEABLE
Gear,spur
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5365-00-829-0965B3-21 INTERCHANGEABLE
Spacer,ring
Roller Bearing Co of America, Inc Div Pic Design
5955-01-029-70442891660-1 INTERCHANGEABLE
Crystal Unit,quartz
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6850-01-051-0581B321 INTERCHANGEABLE
Cleaning Compound,optical Lens
U S Dept of Transportation Federal Aviation Administration
Cross-Reference Index
Part NumberManufacturer
2031288-7 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
5-1171-7 Enersys Inc. Div Hertner (USA)
B7K6N7C Eastern Air Devices Inc Dba Ead Motors (USA)
0691-7 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
175FA7 Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc (USA)
B3-21 Goodrich Corporation Dba Trw Lucas Aerospace (USA)
C8Q6G-4C Ashland Electric Products Inc (USA)
B2361-11G Kearfott Corporation Div Guidance and Navigation Division (USA)
Related Parts
3010-00-174-5633INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
B321
3455-00-194-0550INTERCHANGEABLE
CUTTER,MILLING,SIDE
58-10071
5342-00-200-3757INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
K7107441REV2PT1
3020-00-755-1141INTERCHANGEABLE
GEAR,SPUR
511717
5365-00-829-0965INTERCHANGEABLE
SPACER,RING
B3-21
5955-01-029-7044INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
2891660-1
6850-01-051-0581INTERCHANGEABLE
CLEANING COMPOUND,OPTICAL LENS
B321

Frequently Asked Questions

What is NSN 4140-00-829-8765?

NSN 4140-00-829-8765 is a Fan,centrifugal, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 4140 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4140-00-829-8765?

NSN 4140-00-829-8765 has 8 cross-referenced part numbers: 2031288-7 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 5-1171-7 (Enersys Inc. Div Hertner), B7K6N7C (Eastern Air Devices Inc Dba Ead Motors), 0691-7 (Lockheed Martin Corporation Div Rms - Mitchel Field), 175FA7 (Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc) and 3 more.

What NSN replaces 4140-00-829-8765?

There are 7 known substitutes for 4140-00-829-8765: 3010-00-174-5633, 3455-00-194-0550, 5342-00-200-3757 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 0691-7?

Key specifications for 0691-7: Diameter: 3.000 INCHES NOMINAL IN; Surface Treatment: ENAMEL HOUSING OUTSIDE; Static Pressure at Specified Air Flow Rate: ERR-060; Mounting Facility Type and Quantity: 4 THREADED HOLE(S). 27 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4140-00-829-8765 still in active supply?

NSN 4140-00-829-8765 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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