PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-4-91Bar,service Ribbon

Army Institute of Heraldry This Is an Original Design Activity Not a Mfr · NSN 8455-00-257-4372 · FSC 8455 · No Item Name Available
Verified by PartsTable
NSN 8455-00-257-4372 — this item is cataloged by the U.S. Government under National Stock Number 8455-00-257-4372. Primary manufacturer part number: 4-4-91.
Features
  • Bar,service Ribbon — FSC 8455
  • Size Designation: QUADRUPLE
  • Material: COPPER ALLOY OVERALL
  • Procurement Group Code: 18614
  • Nondefinitive Spec/std Data: 4 SIZE
  • Attachment Method: PRONG-CLUTCH
  • 2 verified cross-references
  • Primary manufacturer: Army Institute of Heraldry This Is an Original Design Activity Not a Mfr
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Bar,service Ribbon, cataloged under National Stock Number 8455-00-257-4372, is classified within Federal Supply Class 8455 (No Item Name Available) of the Clothing, Individual Equipment, and Insignia group. The primary manufacturer of record is Army Institute of Heraldry This Is an Original Design Activity Not a Mfr. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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: Cancelled.

Technical Specifications
ParameterValue
NSN8455-00-257-4372
Primary Part Number4-4-91
Item NameBar,service Ribbon
FSC / FSG8455 / 84 — No Item Name Available
ManufacturerArmy Institute of Heraldry This Is an Original Design Activity Not a Mfr
StatusCANCELLED
Size DesignationQUADRUPLE
MaterialCOPPER ALLOY OVERALL
Procurement Group Code18614
Nondefinitive Spec/std Data4 SIZE
Attachment MethodPRONG-CLUTCH
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
8455-00-257-4371 INTERCHANGEABLE
Bar,service Ribbon
2040-00-391-4459 INTERCHANGEABLE
Lever
5330-00-411-9094 INTERCHANGEABLE
Retainer,packing
5305-01-155-97704491 INTERCHANGEABLE
Screw,machine
Prestolite Electric Inc
5805-01-175-2447247-12 INTERCHANGEABLE
Telephone,lear
Hose-Mccann Telephone Co, Inc
6230-01-396-8900ACR-L-32 INTERCHANGEABLE
Light,marker,field,portable
Acr Electronics, Inc. Dba Acr Electronics Inc
3431-01-442-6783 INTERCHANGEABLE
Nozzle,welding
6515-01-542-34914491 INTERCHANGEABLE
Brace,leg
Mueller Sports Medicine, Inc
6810-01-583-1070 INTERCHANGEABLE
Carbonic Dihydrazid
Cross-Reference Index
Part NumberManufacturer
4-4-91 Army Institute of Heraldry This Is an Original Design Activity Not a Mfr (USA)
MILS3951 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
8455-00-257-4371INTERCHANGEABLE
BAR,SERVICE RIBBON
2040-00-391-4459INTERCHANGEABLE
LEVER
5330-00-411-9094INTERCHANGEABLE
RETAINER,PACKING
5305-01-155-9770INTERCHANGEABLE
SCREW,MACHINE
4491
5805-01-175-2447INTERCHANGEABLE
TELEPHONE,LEAR
247-12
6230-01-396-8900INTERCHANGEABLE
LIGHT,MARKER,FIELD,PORTABLE
ACR-L-32
3431-01-442-6783INTERCHANGEABLE
NOZZLE,WELDING
6515-01-542-3491INTERCHANGEABLE
BRACE,LEG
4491
6810-01-583-1070INTERCHANGEABLE
CARBONIC DIHYDRAZID

Frequently Asked Questions

What is NSN 8455-00-257-4372?

NSN 8455-00-257-4372 is a Bar,service Ribbon, manufactured by Army Institute of Heraldry This Is an Original Design Activity Not a Mfr, classified under FSC 8455 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 8455-00-257-4372?

NSN 8455-00-257-4372 has 2 cross-referenced part numbers: 4-4-91 (Army Institute of Heraldry This Is an Original Design Activity Not a Mfr), MILS3951 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 8455-00-257-4372?

There are 9 known substitutes for 8455-00-257-4372: 8455-00-257-4371, 2040-00-391-4459, 5330-00-411-9094 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-4-91?

Key specifications for 4-4-91: Overall Width: 0.310 INCHES NOMINAL IN; Size Designation: QUADRUPLE; Material: COPPER ALLOY OVERALL; Overall Length: 5.500 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 8455-00-257-4372 still in active supply?

NSN 8455-00-257-4372 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.
PartsTable Design LLC · partstable.com