PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1146Muffler

Am General Llc · NSN 2990-00-770-4110 · FSC 2990 · No Item Name Available
Verified by PartsTable
NSN 2990-00-770-4110 — this item is cataloged by the U.S. Government under National Stock Number 2990-00-770-4110. Primary manufacturer part number: A1146.
Features
  • Muffler — FSC 2990
  • 6 verified cross-references
  • Primary manufacturer: Am General Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Muffler, cataloged under National Stock Number 2990-00-770-4110, is classified within Federal Supply Class 2990 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Am General Llc. This item has 6 commercial cross-references from 4 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 NameMuffler
FSC / FSG2990 — No Item Name Available (FSG 29)
ManufacturersAm General Llc (CAGE 34623); Ford Motor Company (CAGE 57526); Ford Motor Co Ford Parts and Service Div Government Part Sales (CAGE 23040); U S Army Tank Automotive Command Amsta-Im-Mm (CAGE 19207)
Technical Specifications
ParameterValue
NSN2990-00-770-4110
Primary Part NumberA1146
Item NameMuffler
FSC / FSG2990 / 29 — No Item Name Available
ManufacturerAm General Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5845-00-068-724956280-1 INTERCHANGEABLE
Module,output
L3harris Technologies, Inc. Div Space and Airborne Systems
8455-00-131-6516 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-00-246-3529 INTERCHANGEABLE
Insignia,shoulder Sleeve
5930-00-259-8676V-1C-1068 INTERCHANGEABLE
Switch,thermostatic
Burling Instruments, Inc.
6680-01-314-5849 INTERCHANGEABLE
Indicator,sight,liquid
5315-01-483-5613A-114-6 INTERCHANGEABLE
Pin,cotter
Hartzell Propeller Llc
8455-01-528-8856 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-664-0905 INTERCHANGEABLE
Insignia,shoulder Sleeve
8455-01-714-3471 INTERCHANGEABLE
Insignia,shoulder Sleeve
Cross-Reference Index
Part NumberManufacturer
A1146 PRIMARY Am General Llc (USA)
GPW5230A Ford Motor Company (USA)
GPW5230A Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
GPW5230 Ford Motor Company (USA)
GPW5230 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
7704110 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
5845-00-068-7249INTERCHANGEABLE
MODULE,OUTPUT
56280-1
8455-00-131-6516INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-00-246-3529INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
5930-00-259-8676INTERCHANGEABLE
SWITCH,THERMOSTATIC
V-1C-1068
6680-01-314-5849INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
5315-01-483-5613INTERCHANGEABLE
PIN,COTTER
A-114-6
8455-01-528-8856INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-664-0905INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE
8455-01-714-3471INTERCHANGEABLE
INSIGNIA,SHOULDER SLEEVE

Frequently Asked Questions

What is NSN 2990-00-770-4110?

NSN 2990-00-770-4110 is a Muffler, manufactured by Am General Llc, classified under FSC 2990 (No Item Name Available). Status: active.

What are the part numbers for NSN 2990-00-770-4110?

NSN 2990-00-770-4110 has 6 cross-referenced part numbers: A1146 (Am General Llc), GPW5230A (Ford Motor Company), GPW5230A (Ford Motor Co Ford Parts and Service Div Government Part Sales), GPW5230 (Ford Motor Company), GPW5230 (Ford Motor Co Ford Parts and Service Div Government Part Sales) and 1 more.

What NSN replaces 2990-00-770-4110?

There are 9 known substitutes for 2990-00-770-4110: 5845-00-068-7249, 8455-00-131-6516, 8455-00-246-3529 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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