PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40438Gear Assembly

Nav Systems Inc. · NSN 6660-00-330-9248 · FSC 6660 · No Item Name Available
Verified by PartsTable
NSN 6660-00-330-9248 — this item is cataloged by the U.S. Government under National Stock Number 6660-00-330-9248. Primary manufacturer part number: 40438.
Features
  • Gear Assembly — FSC 6660
  • General Characteristics Item Description: BRASS; 7.125 IN. LONG; 0.281IN. DIA IN
  • 6 verified cross-references
  • Primary manufacturer: Nav Systems Inc.
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear Assembly, cataloged under National Stock Number 6660-00-330-9248, is classified within Federal Supply Class 6660 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Nav Systems Inc.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6660-00-330-9248
Primary Part Number40438
Item NameGear Assembly
FSC / FSG6660 / 66 — No Item Name Available
ManufacturerNav Systems Inc.
StatusACTIVE
General Characteristics Item DescriptionBRASS; 7.125 IN. LONG; 0.281IN. DIA IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5315-00-187-3274MS24692-108 INTERCHANGEABLE
Pin,tapered,plain
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3455-00-240-731813220 INTERCHANGEABLE
Cutter,milling,angle
Niagara Cutter Inc
4820-00-692-00415669 INTERCHANGEABLE
Valve,globe
General Aviation Industries, Inc. Dba General Aviation Industries Inc
5330-00-739-31607393160 INTERCHANGEABLE
Seal,plain Encased
U S Army Tank Automotive Command Amsta-Im-Mm
5930-00-876-680140438 INTERCHANGEABLE
Switch,rotary
L3harris Technologies, Inc. Div Space and Airborne Systems
5962-01-078-574840438 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Div Rmd Strategic
3110-01-517-244640438 INTERCHANGEABLE
Bearing,ball,annular
Honeywell International Inc. Div Aerospace - Torrance
5365-01-533-896940438 INTERCHANGEABLE
Spacer,stepped
Gage Bilt, Inc.
Cross-Reference Index
Part NumberManufacturer
40438 Belfort Instrument Company (USA)
514006PC30 Smiths Detection Inc. Dba Smiths Detection Inc Casc (USA)
40438C Belfort Instrument Company (USA)
40438C Smiths Detection Inc. Dba Smiths Detection Inc Casc (USA)
S6505-1011676PC30 Naval Ship Systems Command (USA)
40438 PRIMARY Nav Systems Inc. (USA)
Related Parts
5315-00-187-3274INTERCHANGEABLE
PIN,TAPERED,PLAIN
MS24692-108
3455-00-240-7318INTERCHANGEABLE
CUTTER,MILLING,ANGLE
13220
4820-00-692-0041INTERCHANGEABLE
VALVE,GLOBE
5669
5330-00-739-3160INTERCHANGEABLE
SEAL,PLAIN ENCASED
7393160
5930-00-876-6801INTERCHANGEABLE
SWITCH,ROTARY
40438
5962-01-078-5748INTERCHANGEABLE
MICROCIRCUIT,MEMORY
40438
3110-01-517-2446INTERCHANGEABLE
BEARING,BALL,ANNULAR
40438
5365-01-533-8969INTERCHANGEABLE
SPACER,STEPPED
40438

Frequently Asked Questions

What is NSN 6660-00-330-9248?

NSN 6660-00-330-9248 is a Gear Assembly, manufactured by Nav Systems Inc., classified under FSC 6660 (No Item Name Available). Status: active.

What are the part numbers for NSN 6660-00-330-9248?

NSN 6660-00-330-9248 has 6 cross-referenced part numbers: 40438 (Belfort Instrument Company), 514006PC30 (Smiths Detection Inc. Dba Smiths Detection Inc Casc), 40438C (Belfort Instrument Company), 40438C (Smiths Detection Inc. Dba Smiths Detection Inc Casc), S6505-1011676PC30 (Naval Ship Systems Command) and 1 more.

What NSN replaces 6660-00-330-9248?

There are 8 known substitutes for 6660-00-330-9248: 5315-00-187-3274, 3455-00-240-7318, 4820-00-692-0041 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40438?

Key specifications for 40438: General Characteristics Item Description: BRASS; 7.125 IN. LONG; 0.281IN. DIA IN. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com