PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILS3951Bar,service Ribbon

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 8455-00-257-4371 · FSC 8455 · No Item Name Available
Verified by PartsTable
NSN 8455-00-257-4371 — this item is cataloged by the U.S. Government under National Stock Number 8455-00-257-4371. Primary manufacturer part number: MILS3951.
Features
  • Bar,service Ribbon — FSC 8455
  • Attachment Method: PRONG-CLUTCH
  • Material: COPPER ALLOY OVERALL
  • Procurement Group Code: 03052
  • Nondefinitive Spec/std Data: 2 SIZE
  • Size Designation: DOUBLE
  • 2 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Bar,service Ribbon, cataloged under National Stock Number 8455-00-257-4371, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. 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: Active.

Technical Specifications
ParameterValue
NSN8455-00-257-4371
Primary Part NumberMILS3951
Item NameBar,service Ribbon
FSC / FSG8455 / 84 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Attachment MethodPRONG-CLUTCH
MaterialCOPPER ALLOY OVERALL
Procurement Group Code03052
Nondefinitive Spec/std Data2 SIZE
Size DesignationDOUBLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
8455-00-257-4372 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
MILS3951 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4-4-91 Army Institute of Heraldry This Is an Original Design Activity Not a Mfr (USA)
Related Parts
8455-00-257-4372INTERCHANGEABLE
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 8455-00-257-4371?

NSN 8455-00-257-4371 is a Bar,service Ribbon, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 8455 (No Item Name Available). Status: active.

What are the part numbers for NSN 8455-00-257-4371?

NSN 8455-00-257-4371 has 2 cross-referenced part numbers: MILS3951 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 4-4-91 (Army Institute of Heraldry This Is an Original Design Activity Not a Mfr).

What NSN replaces 8455-00-257-4371?

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

What are the specifications of MILS3951?

Key specifications for MILS3951: Attachment Method: PRONG-CLUTCH; Overall Width: 0.310 INCHES NOMINAL IN; Material: COPPER ALLOY OVERALL; Procurement Group Code: 03052. 7 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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