PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

421759Cap Assembly,protective,muffler-

Clark Material Handling Company · NSN 2990-00-018-6318 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-018-6318 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-018-6318. Primary manufacturer part number: 421759.
Features
  • Cap Assembly,protective,muffler- — FSC 2990
  • 21 verified cross-references
  • Primary manufacturer: Clark Material Handling Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cap Assembly,protective,muffler-, cataloged under National Stock Number 2990-00-018-6318, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Clark Material Handling Company. This item has 21 commercial cross-references from 16 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameCap Assembly,protective,muffler-
FSC / FSG2990 — No Item Name Available (FSG 29)
ManufacturersJenny Products, Inc (CAGE 29215); Wright Line Inc Sub of Barry Wright Corp (CAGE 63177); Wood John Co Ltd (CAGE 36391); Coltec Industries Inc Fmd Electronics Div (CAGE 03764); Pierce Manufacturing Inc (CAGE 04664)
Technical Specifications
ParameterValue
NSN2990-00-018-6318
Primary Part Number421759
Item NameCap Assembly,protective,muffler-
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerClark Material Handling Company
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5360-00-005-7664363-00 INTERCHANGEABLE
Spring,leaf
Hutchens Industries Inc
4320-00-066-1602713-8-11 INTERCHANGEABLE
Pump,rotary
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
3110-00-100-057836300 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
2815-00-127-9014R79624 INTERCHANGEABLE
Valve,poppet,engine
Deere & Co
4320-00-177-0612 INTERCHANGEABLE
Pump Unit,centrifugal
5310-00-185-6389 INTERCHANGEABLE
Nut,plain,round
5310-00-275-1719100-8 INTERCHANGEABLE
Nut,plain,hexagon
Emcore Space & Navigation Corporation Div Space & Navigation
4820-00-389-845736300 INTERCHANGEABLE
Stem,fluid Valve
Northrop Grumman Systems Corporation Div Marine Systems
1650-00-412-239360625 INTERCHANGEABLE
Parts Kit,pump
Parker Hannifin Corporation Div Hydraulic Systems Division
5935-00-433-167377300 INTERCHANGEABLE
Connector,receptacle,electrical
Amphenol Corporation Div Amphenol Rf
Cross-Reference Index
Part NumberManufacturer
60625 Jenny Products, Inc (USA)
3210830 Wright Line Inc Sub of Barry Wright Corp (USA)
8 Wood John Co Ltd (CAN)
3IN Coltec Industries Inc Fmd Electronics Div (USA)
1342571 Pierce Manufacturing Inc (USA)
420V5501 Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co (USA)
11009 Gleason Corp Anthes Div (USA)
421759 PRIMARY Clark Material Handling Company (USA)
77-300 Mercury Products Corp (USA)
A36050-3 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
3210830 Sicard a Division of Smi-Snowblast Inc Dba Sicard (USA)
P270536 Donaldson Co Inc Kittell Div (USA)
60265 Coltec Industries Inc Fmd Electronics Div (USA)
60265 Davey Compressor Co Div of Keco Industries Inc (USA)
N08 Gleason Corp Anthes Div (USA)
11009 Mercury Products Corp (USA)
B52-1161-2 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
4205501 Koehring Co (USA)
A41271 Koehring Co Lorain Div (USA)
36300 Coltec Industries Inc Fmd Electronics Div (USA)
Related Parts
5360-00-005-7664INTERCHANGEABLE
SPRING,LEAF
363-00
4320-00-066-1602INTERCHANGEABLE
PUMP,ROTARY
713-8-11
3110-00-100-0578INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
36300
2815-00-127-9014INTERCHANGEABLE
VALVE,POPPET,ENGINE
R79624
4320-00-177-0612INTERCHANGEABLE
PUMP UNIT,CENTRIFUGAL
5310-00-185-6389INTERCHANGEABLE
NUT,PLAIN,ROUND
5310-00-275-1719INTERCHANGEABLE
NUT,PLAIN,HEXAGON
100-8
4820-00-389-8457INTERCHANGEABLE
STEM,FLUID VALVE
36300
1650-00-412-2393INTERCHANGEABLE
PARTS KIT,PUMP
60625
5935-00-433-1673INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
77300
5340-00-848-6768INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
194-513-9009
3120-00-867-8999INTERCHANGEABLE
BEARING,PLAIN,ROD END
77300

Frequently Asked Questions

What is NSN 2990-00-018-6318?

NSN 2990-00-018-6318 is a Cap Assembly,protective,muffler-, manufactured by Clark Material Handling Company, classified under FSC 2990 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2990-00-018-6318?

NSN 2990-00-018-6318 has 21 cross-referenced part numbers: 60625 (Jenny Products, Inc), 3210830 (Wright Line Inc Sub of Barry Wright Corp), 8 (Wood John Co Ltd), 3IN (Coltec Industries Inc Fmd Electronics Div), 1342571 (Pierce Manufacturing Inc) and 16 more.

What NSN replaces 2990-00-018-6318?

There are 12 known substitutes for 2990-00-018-6318: 5360-00-005-7664, 4320-00-066-1602, 3110-00-100-0578 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 2990-00-018-6318 still in active supply?

NSN 2990-00-018-6318 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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