PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4685Circuit Card Assembly

Lockheed Martin Corporation Div Rms · NSN 5998-00-857-4546 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-00-857-4546 — this item is cataloged by the U.S. Government under National Stock Number 5998-00-857-4546. Primary manufacturer part number: 4685.
Features
  • Circuit Card Assembly — FSC 5998
  • 3 verified cross-references
  • Primary manufacturer: Lockheed Martin Corporation Div Rms
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-00-857-4546, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms. This item has 3 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. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-00-857-4546
Primary Part Number4685
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerLockheed Martin Corporation Div Rms
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.0200 lbs
Cube0.0226 cu ft
Verified Substitutes 9
5365-00-213-05213373479 INTERCHANGEABLE
Spacer,clutch
Hatch & Kirk, Inc.
5985-00-295-95224685 INTERCHANGEABLE
Antenna
Northrop Grumman Systems Corporation
5340-00-375-49692027 INTERCHANGEABLE
Snap Hook
Buhrke R H Co Inc Div Klein Tools
5996-00-416-0022468-5 INTERCHANGEABLE
Amplifier,radio Frequency
General Microwave Corporation Div Kratos Microwave Electronics
4920-00-707-56724-685 INTERCHANGEABLE
Spindle and Bracket
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
3455-00-808-42961741-2000 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
5330-00-877-7547053860 INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
5310-01-155-17022BA568 INTERCHANGEABLE
Washer,flat
Oshkosh Defense Llc
5355-01-375-76884685 INTERCHANGEABLE
Knob
Pentair Filtration Solutions, Llc
Cross-Reference Index
Part NumberManufacturer
0000C4685 Lockheed Martin Corporation Div Rms (USA)
4685 Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems (USA)
4685 PRIMARY Lockheed Martin Corporation Div Rms (USA)
Related Parts
5365-00-213-0521INTERCHANGEABLE
SPACER,CLUTCH
3373479
5985-00-295-9522INTERCHANGEABLE
ANTENNA
4685
5340-00-375-4969INTERCHANGEABLE
SNAP HOOK
2027
5996-00-416-0022INTERCHANGEABLE
AMPLIFIER,RADIO FREQUENCY
468-5
4920-00-707-5672INTERCHANGEABLE
SPINDLE AND BRACKET
4-685
3455-00-808-4296INTERCHANGEABLE
CUTTER,MILLING,END
1741-2000
5330-00-877-7547INTERCHANGEABLE
GASKET
053860
5310-01-155-1702INTERCHANGEABLE
WASHER,FLAT
2BA568
5355-01-375-7688INTERCHANGEABLE
KNOB
4685

Frequently Asked Questions

What is NSN 5998-00-857-4546?

NSN 5998-00-857-4546 is a Circuit Card Assembly, manufactured by Lockheed Martin Corporation Div Rms, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-00-857-4546?

NSN 5998-00-857-4546 has 3 cross-referenced part numbers: 0000C4685 (Lockheed Martin Corporation Div Rms), 4685 (Martin Marietta Technologies Inc Sub of Martin Marietta Corp Aero and Naval Systems), 4685 (Lockheed Martin Corporation Div Rms).

What NSN replaces 5998-00-857-4546?

There are 9 known substitutes for 5998-00-857-4546: 5365-00-213-0521, 5985-00-295-9522, 5340-00-375-4969 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4685?

Key specifications for 4685: Overall Height: 0.625 INCHES NOMINAL IN; Overall Width: 4.000 INCHES NOMINAL IN; Special Features: CAPACITOR FIXED 7; CONNECTOR 1; JACK TEST 3; PRINTED WIRING BOARD 1; RESISTOR FIXED 12; SEMICONDUCTOR DEVICE DIODE 4; TRANSISTOR 4; Overall Length: 4.380 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

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