PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FB0071Cap Assembly,protective,muffler-

Mercury Products Corp · NSN 2990-01-165-8242 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-01-165-8242 — this item is cataloged by the U.S. Government under National Stock Number 2990-01-165-8242. Primary manufacturer part number: FB0071.
Features
  • Cap Assembly,protective,muffler- — FSC 2990
  • Pipe Outside Diameter Accommodated: 4.000 INCHES IN
  • Material: STEEL
  • 6 verified cross-references
  • Primary manufacturer: Mercury Products Corp
Applications
  • Applications requiring Steel construction
General Description

The Cap Assembly,protective,muffler-, cataloged under National Stock Number 2990-01-165-8242, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Mercury Products Corp. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2990-01-165-8242
Primary Part NumberFB0071
Item NameCap Assembly,protective,muffler-
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerMercury Products Corp
StatusACTIVE
Pipe Outside Diameter Accommodated4.000 INCHES IN
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5342-00-065-4863 INTERCHANGEABLE
Latch
3110-00-100-31182B2633 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Caterpillar Inc Div Caterpillar Defense
5945-00-201-518288ARHPX-1 INTERCHANGEABLE
Relay,electromagnetic
Se Relays Llc (magnecraft) Div Se Relays Llc (magnecraft)
2915-00-831-56453779 INTERCHANGEABLE
Guide,restrictor,li
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
9390-00-910-8758A7932 INTERCHANGEABLE
Wiper
Autodyne Manufacturing Co Inc
5330-01-063-579977-400 INTERCHANGEABLE
Gasket
Dynaflex Products
5360-01-224-1555774-00 INTERCHANGEABLE
Spring,helical,compression
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
6640-01-276-20283779 INTERCHANGEABLE
Mailing Case Section,microscope
Thermo Shandon Inc Dba Shandon Inc Div Anatomical Pathology
4030-01-286-5925 INTERCHANGEABLE
Socket,wire Rope
5998-01-532-45403779 INTERCHANGEABLE
Circuit Card Assembly
Technobox Inc
Cross-Reference Index
Part NumberManufacturer
336649R91 Komatsu America Corp. (USA)
77400 Mercury Products Corp (USA)
336649R91 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
3779 Vulcan Machine and Mfg Inc (USA)
336649R91 Komatsu American Intl Co (USA)
FB0071 PRIMARY Mercury Products Corp (USA)
Related Parts
5342-00-065-4863INTERCHANGEABLE
LATCH
3110-00-100-3118INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
2B2633
5945-00-201-5182INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
88ARHPX-1
2915-00-831-5645INTERCHANGEABLE
GUIDE,RESTRICTOR,LI
3779
9390-00-910-8758INTERCHANGEABLE
WIPER
A7932
5330-01-063-5799INTERCHANGEABLE
GASKET
77-400
5360-01-224-1555INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
774-00
6640-01-276-2028INTERCHANGEABLE
MAILING CASE SECTION,MICROSCOPE
3779
4030-01-286-5925INTERCHANGEABLE
SOCKET,WIRE ROPE
5998-01-532-4540INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
3779
7510-01-562-1243INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
3779 2 IN.

Frequently Asked Questions

What is NSN 2990-01-165-8242?

NSN 2990-01-165-8242 is a Cap Assembly,protective,muffler-, manufactured by Mercury Products Corp, classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-01-165-8242?

NSN 2990-01-165-8242 has 6 cross-referenced part numbers: 336649R91 (Komatsu America Corp.), 77400 (Mercury Products Corp), 336649R91 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 3779 (Vulcan Machine and Mfg Inc), 336649R91 (Komatsu American Intl Co) and 1 more.

What NSN replaces 2990-01-165-8242?

There are 11 known substitutes for 2990-01-165-8242: 5342-00-065-4863, 3110-00-100-3118, 5945-00-201-5182 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FB0071?

Key specifications for FB0071: Special Features: SOLID RIVET; Pipe Outside Diameter Accommodated: 4.000 INCHES IN; Material: STEEL; End Item Identification: TRUCK; NAVISTAR INTERNATIONAL CORP; MODEL 1853. 4 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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