PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9N1903Module,linear Firin

Gould & Bass Company, Inc. · NSN 6635-01-122-9559 · FSC 6635 · No Item Name Available
Verified by PartsTable
NSN 6635-01-122-9559 — this item is cataloged by the U.S. Government under National Stock Number 6635-01-122-9559. Primary manufacturer part number: 9N1903.
Features
  • Module,linear Firin — FSC 6635
  • 2 verified cross-references
  • Primary manufacturer: Gould & Bass Company, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Module,linear Firin, cataloged under National Stock Number 6635-01-122-9559, is classified within Federal Supply Class 6635 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Gould & Bass Company, Inc.. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameModule,linear Firin
FSC / FSG6635 — No Item Name Available (FSG 66)
ManufacturersGould & Bass Company, Inc. (CAGE 7Z769); Jenks, William Dba Solid State Systems (CAGE 1DU02)
Technical Specifications
ParameterValue
NSN6635-01-122-9559
Primary Part Number9N1903
Item NameModule,linear Firin
FSC / FSG6635 / 66 — No Item Name Available
ManufacturerGould & Bass Company, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5961-00-452-952570-1006 INTERCHANGEABLE
Transistor
Darchem Engineering Ltd
1660-00-871-2309701006 INTERCHANGEABLE
Shaft,output,actuat
Meggitt North Hollywood Inc
2530-01-096-90487010-06 INTERCHANGEABLE
Brake,valve
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
2815-01-274-9935701006 INTERCHANGEABLE
Housing,spool
Dresser, Llc
2540-01-301-8109701006 INTERCHANGEABLE
Mirror Head,vehicular
Velvac Inc
5330-01-337-549725001250-375B INTERCHANGEABLE
Packing,preformed
Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps)
5310-01-458-46437010006 INTERCHANGEABLE
Washer,flat
Mirion Technologies (canberra), Inc.
5305-01-621-4161701006 INTERCHANGEABLE
Screw,machine
Otto Engineering Inc
5905-01-697-5926701006 INTERCHANGEABLE
Resistor,thermal
Te Connectivity Corporation
Cross-Reference Index
Part NumberManufacturer
9N1903 PRIMARY Gould & Bass Company, Inc. (USA)
70-1006 Jenks, William Dba Solid State Systems (USA)
Related Parts
5961-00-452-9525INTERCHANGEABLE
TRANSISTOR
70-1006
1660-00-871-2309INTERCHANGEABLE
SHAFT,OUTPUT,ACTUAT
701006
2530-01-096-9048INTERCHANGEABLE
BRAKE,VALVE
7010-06
2815-01-274-9935INTERCHANGEABLE
HOUSING,SPOOL
701006
2540-01-301-8109INTERCHANGEABLE
MIRROR HEAD,VEHICULAR
701006
5330-01-337-5497INTERCHANGEABLE
PACKING,PREFORMED
25001250-375B
5310-01-458-4643INTERCHANGEABLE
WASHER,FLAT
7010006
5305-01-621-4161INTERCHANGEABLE
SCREW,MACHINE
701006
5905-01-697-5926INTERCHANGEABLE
RESISTOR,THERMAL
701006

Frequently Asked Questions

What is NSN 6635-01-122-9559?

NSN 6635-01-122-9559 is a Module,linear Firin, manufactured by Gould & Bass Company, Inc., classified under FSC 6635 (No Item Name Available). Status: active.

What are the part numbers for NSN 6635-01-122-9559?

NSN 6635-01-122-9559 has 2 cross-referenced part numbers: 9N1903 (Gould & Bass Company, Inc.), 70-1006 (Jenks, William Dba Solid State Systems).

What NSN replaces 6635-01-122-9559?

There are 9 known substitutes for 6635-01-122-9559: 5961-00-452-9525, 1660-00-871-2309, 2530-01-096-9048 and 6 more. Verify interchangeability with system specifications before substitution.

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