PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5504091Support,barrel

Army, United States Department of the Dba Rock Island Arsenal Jmtc · NSN 1005-00-550-4091 · FSC 1005 · No Item Name Available
Verified by PartsTable
NSN 1005-00-550-4091 — this item is cataloged by the U.S. Government under National Stock Number 1005-00-550-4091. Primary manufacturer part number: 5504091.
Features
  • Support,barrel — FSC 1005
  • General Characteristics Item Description: MATERIAL:IRON;9.885 IN.LG;4.02 IN.DIA AT FIRST END;3.125 IN.DIA AT SECOND END;SURFACE TREATMENT:MANGANESEPHOSPHATE,MIL-P-16232,TYPE M,CLASS 1 IN
  • 6 verified cross-references
  • Primary manufacturer: Army, United States Department of the Dba Rock Island Arsenal Jmtc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Support,barrel, cataloged under National Stock Number 1005-00-550-4091, is classified within Federal Supply Class 1005 (No Item Name Available) of the Weapons group. The primary manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1005-00-550-4091
Primary Part Number5504091
Item NameSupport,barrel
FSC / FSG1005 / 10 — No Item Name Available
ManufacturerArmy, United States Department of the Dba Rock Island Arsenal Jmtc
StatusACTIVE
General Characteristics Item DescriptionMATERIAL:IRON;9.885 IN.LG;4.02 IN.DIA AT FIRST END;3.125 IN.DIA AT SECOND END;SURFACE TREATMENT:MANGANESEPHOSPHATE,MIL-P-16232,TYPE M,CLASS 1 IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6105-00-231-2016629613-6 INTERCHANGEABLE
Motor-Tachometer Generator
Honeywell Limited Dba Honeywell Aerospace Toronto Div Aerospace-Toronto
5840-00-324-9011A10251 INTERCHANGEABLE
Plate,nonmetallic
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
5950-00-583-0975 INTERCHANGEABLE
Reactor
5820-01-022-9241SC-C-866119 INTERCHANGEABLE
Mounting Assembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Cross-Reference Index
Part NumberManufacturer
5504091 PRIMARY Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA)
75F6080 Giat Industries Centre De Tulle (FRA)
A10251 Fnh Uk Ltd (GBR)
1005005504091 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
3662001211 Fn Herstal Dba Fabrique Nationale Nouvelle Herstal (BEL)
1005PL0902397 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
6105-00-231-2016INTERCHANGEABLE
MOTOR-TACHOMETER GENERATOR
629613-6
5840-00-324-9011INTERCHANGEABLE
PLATE,NONMETALLIC
A10251
5950-00-583-0975INTERCHANGEABLE
REACTOR
5820-01-022-9241INTERCHANGEABLE
MOUNTING ASSEMBLY
SC-C-866119

Frequently Asked Questions

What is NSN 1005-00-550-4091?

NSN 1005-00-550-4091 is a Support,barrel, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 1005 (No Item Name Available). Status: active.

What are the part numbers for NSN 1005-00-550-4091?

NSN 1005-00-550-4091 has 6 cross-referenced part numbers: 5504091 (Army, United States Department of the Dba Rock Island Arsenal Jmtc), 75F6080 (Giat Industries Centre De Tulle), A10251 (Fnh Uk Ltd), 1005005504091 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), 3662001211 (Fn Herstal Dba Fabrique Nationale Nouvelle Herstal) and 1 more.

What NSN replaces 1005-00-550-4091?

There are 4 known substitutes for 1005-00-550-4091: 6105-00-231-2016, 5840-00-324-9011, 5950-00-583-0975 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5504091?

Key specifications for 5504091: General Characteristics Item Description: MATERIAL:IRON;9.885 IN.LG;4.02 IN.DIA AT FIRST END;3.125 IN.DIA AT SECOND END;SURFACE TREATMENT:MANGANESEPHOSPHATE,MIL-P-16232,TYPE M,CLASS 1 IN; End Item Identification: MACHINE GUN,CAL. .50 (M2); NSN 1005-00-322-9715. 2 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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