PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C025-1Knob

Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company · NSN 5355-00-917-7885 · FSC 5355 · No Item Name Available
Verified by PartsTable
NSN 5355-00-917-7885 — this item is cataloged by the U.S. Government under National Stock Number 5355-00-917-7885. Primary manufacturer part number: C025-1.
Features
  • Knob — FSC 5355
  • Pointer Design: NONDETACHABLE
  • Screw Drive Type: HEXAGON SOCKET
  • Inside Width: 0.223 INCHES NOMINAL IN
  • Attachment Method: SETSCREWS
  • Skirt Outside Diameter: 0.750 INCHES NOMINAL IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) SCREW HOLE
  • Style Designator: ROUND WITH SINGLE POINTER
Applications
  • Applications requiring Copper Alloy and Plastic Cellulose Acetate Butyrate and Steel Comp 303 construction
General Description

The Knob, cataloged under National Stock Number 5355-00-917-7885, is classified within Federal Supply Class 5355 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5355-00-917-7885
Primary Part NumberC025-1
Item NameKnob
FSC / FSG5355 / 53 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Lockheed Martin Aeronautics Company
StatusCANCELLED
Pointer DesignNONDETACHABLE
Screw Drive TypeHEXAGON SOCKET
Inside Width0.223 INCHES NOMINAL IN
Attachment MethodSETSCREWS
Skirt Outside Diameter0.750 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SCREW HOLE
Style DesignatorROUND WITH SINGLE POINTER
Skirt DesignNONDETACHABLE
MaterialCOPPER ALLOY AND PLASTIC CELLULOSE ACETATE BUTYRATE AND STEEL COMP 303
ColorGRAY/GREY
Nominal Thread Size0.164 INCHES SCREW HOLE IN
Thread Quantity Per Inch32 SCREW HOLE
Inside Diameter0.253 INCHES NOMINAL IN
Width0.875 INCHES NOMINAL IN
Distance From Hole Center to Knob/skirt Base0.250 INCHES NOMINAL IN
Shaft Accommodation StyleFLATTED ONE SIDE
Length0.719 INCHES NOMINAL IN
Setscrew Hole Quantity1
Skirt StyleSTEPPED
Gripping Surface ConditionGRIP AID
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3120-00-151-5051 INTERCHANGEABLE
Bearing,sleeve
3040-00-194-2389C7341S3 INTERCHANGEABLE
Collar,shaft
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
6105-00-312-3109 INTERCHANGEABLE
Winding,motor Field
5325-00-616-47902600 SERIES CUP INTERCHANGEABLE
Post,snap Fastener
Howmet Global Fastening Systems Inc Div Camloc Products
5355-00-838-2304C025-1 INTERCHANGEABLE
Knob
Control Products Corporation
5940-01-032-8466C125 INTERCHANGEABLE
Terminal Board
Bulgin Components Plc
4925-01-080-4804C0-251 INTERCHANGEABLE
Oscillator
S. W. Electronics & Manufacturing Corp. Dba Swemco
5210-01-139-74445210-01-139-7444 INTERCHANGEABLE
Tape,measuring
General Services Administration Federal Supply Service
4820-01-143-4311C125 INTERCHANGEABLE
Valve,check
Humphrey Products Co
5998-01-216-3449 INTERCHANGEABLE
Printed Circuit Board
Cross-Reference Index
Part NumberManufacturer
FNA3139 Electronic Hardware Corp Dba Electronic Hardware Corp (USA)
C125 Applied Avionics, Llc Dba Applied Avionics, Inc (USA)
C025-1 PRIMARY Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
C125-1 Applied Avionics, Llc Dba Applied Avionics, Inc (USA)
C025-1 Conti Industries Inc (USA)
FNA3139 Felsenthal Electronics Corp Sub of Electronic Hardware Corp (USA)
62022 Control Products Corporation (USA)
62-9482-1 Control Products Corporation (USA)
Related Parts
3120-00-151-5051INTERCHANGEABLE
BEARING,SLEEVE
3040-00-194-2389INTERCHANGEABLE
COLLAR,SHAFT
C7341S3
6105-00-312-3109INTERCHANGEABLE
WINDING,MOTOR FIELD
5325-00-616-4790INTERCHANGEABLE
POST,SNAP FASTENER
2600 SERIES CUP
5355-00-838-2304INTERCHANGEABLE
KNOB
C025-1
5940-01-032-8466INTERCHANGEABLE
TERMINAL BOARD
C125
4925-01-080-4804INTERCHANGEABLE
OSCILLATOR
C0-251
5210-01-139-7444INTERCHANGEABLE
TAPE,MEASURING
5210-01-139-7444
4820-01-143-4311INTERCHANGEABLE
VALVE,CHECK
C125
5998-01-216-3449INTERCHANGEABLE
PRINTED CIRCUIT BOARD
5365-01-357-1763INTERCHANGEABLE
SPACER,PLATE
SK56Y21-92-1 SIZE C-125
6625-01-469-6401INTERCHANGEABLE
CASE,ELECTRICAL-ELECTRONIC TEST
C125

Frequently Asked Questions

What is NSN 5355-00-917-7885?

NSN 5355-00-917-7885 is a Knob, manufactured by Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company, classified under FSC 5355 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5355-00-917-7885?

NSN 5355-00-917-7885 has 8 cross-referenced part numbers: FNA3139 (Electronic Hardware Corp Dba Electronic Hardware Corp), C125 (Applied Avionics, Llc Dba Applied Avionics, Inc), C025-1 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), C125-1 (Applied Avionics, Llc Dba Applied Avionics, Inc), C025-1 (Conti Industries Inc) and 3 more.

What NSN replaces 5355-00-917-7885?

There are 12 known substitutes for 5355-00-917-7885: 3120-00-151-5051, 3040-00-194-2389, 6105-00-312-3109 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of C025-1?

Key specifications for C025-1: Pointer Design: NONDETACHABLE; Overall Depth: 0.562 INCHES NOMINAL IN; Screw Drive Type: HEXAGON SOCKET; Inside Width: 0.223 INCHES NOMINAL IN. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5355-00-917-7885 still in active supply?

NSN 5355-00-917-7885 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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