PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RR-F-191/4D ITEM 11Arm Extension,fencing

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5660-00-408-8743 · FSC 5660 · No Item Name Available
Verified by PartsTable
NSN 5660-00-408-8743 — this item is cataloged by the U.S. Government under National Stock Number 5660-00-408-8743. Primary manufacturer part number: RR-F-191/4D ITEM 11.
Features
  • Arm Extension,fencing — FSC 5660
  • Diameter: 2.375 INCHES NOMINAL IN
  • Post Shape: ROUND
  • Material: STEEL
  • Style Designator: ANGLE TYPE/LINE POLE
  • Surface Treatment: ZINC
  • Strand Quantity for Which Designed: 3
  • 13 verified cross-references
Applications
  • Applications requiring Steel construction
General Description

The Arm Extension,fencing, cataloged under National Stock Number 5660-00-408-8743, is classified within Federal Supply Class 5660 (No Item Name Available) of the Construction and Building Materials group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5660-00-408-8743
Primary Part NumberRR-F-191/4D ITEM 11
Item NameArm Extension,fencing
FSC / FSG5660 / 56 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Diameter2.375 INCHES NOMINAL IN
Post ShapeROUND
MaterialSTEEL
Style DesignatorANGLE TYPE/LINE POLE
Surface TreatmentZINC
Strand Quantity for Which Designed3
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5360-00-126-105813109 INTERCHANGEABLE
Spring,helical,compression
Westinghouse Air Brake Technologies Corp Dba Westinghouse Air Brake Technologies Corp
5965-00-128-2512SCD2268 INTERCHANGEABLE
Microphone,carbon
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5975-00-284-9258 INTERCHANGEABLE
Conduit Outlet
6920-00-322-080113109 INTERCHANGEABLE
Signal Conditioning and Display
Del Mar Avionics, Llc
2940-00-356-1219C157 INTERCHANGEABLE
Filter Element,fluid
Honeywell International Inc Dba Honeywell Div Consumer Products Group
6240-00-397-3864030-0038-1 INTERCHANGEABLE
Lamp,thallium Iodide
Raytheon Company Dba Raytheon Co
5330-00-423-479231090 INTERCHANGEABLE
Gasket
Mcneil Ohio Corp
4920-00-869-545413109 INTERCHANGEABLE
Sinusoidal Assembly
Elbitamerica, Inc.
5330-00-886-3657 INTERCHANGEABLE
Packing,preformed
6220-01-012-08039007A INTERCHANGEABLE
Lens,light
Truck-Lite Co., Llc
Cross-Reference Index
Part NumberManufacturer
RR-F-191/4D ITEM 11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
6008Z2 Mcmaster-Carr Supply Co (USA)
603 Semmerling Fence and Supply Inc (USA)
RR-F-191 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
T-17 Cyclone Fence United States Steel Corp (USA)
S25-250 Chain Link Fence Corp Div of Midwest Fence Corp (USA)
13109 Master Fence Fittings Inc (USA)
S25-250 Page-Wilson Corp (USA)
BWA 64-3 Cox Fence Fittings Co (USA)
21PS Robertson Wire Products Co (USA)
BWA-42 Ameco Inc (USA)
BWF345250 Guardian Fence Suppliers of S.c., Inc. (USA)
02051 Merchants Metals Inc (USA)
Related Parts
5360-00-126-1058INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
13109
5965-00-128-2512INTERCHANGEABLE
MICROPHONE,CARBON
SCD2268
5975-00-284-9258INTERCHANGEABLE
CONDUIT OUTLET
6920-00-322-0801INTERCHANGEABLE
SIGNAL CONDITIONING AND DISPLAY
13109
2940-00-356-1219INTERCHANGEABLE
FILTER ELEMENT,FLUID
C157
6240-00-397-3864INTERCHANGEABLE
LAMP,THALLIUM IODIDE
030-0038-1
5330-00-423-4792INTERCHANGEABLE
GASKET
31090
4920-00-869-5454INTERCHANGEABLE
SINUSOIDAL ASSEMBLY
13109
5330-00-886-3657INTERCHANGEABLE
PACKING,PREFORMED
6220-01-012-0803INTERCHANGEABLE
LENS,LIGHT
9007A
4520-01-020-7631INTERCHANGEABLE
BOILER,HEATING,LOW PRESSURE
T-17
4220-01-039-1962INTERCHANGEABLE
CYLINDER,AIR,DIVING EQUIPMENT

Frequently Asked Questions

What is NSN 5660-00-408-8743?

NSN 5660-00-408-8743 is a Arm Extension,fencing, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5660 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5660-00-408-8743?

NSN 5660-00-408-8743 has 13 cross-referenced part numbers: RR-F-191/4D ITEM 11 (Federal Specifications Promulgated by General Services Administration Washington DC), 6008Z2 (Mcmaster-Carr Supply Co), 603 (Semmerling Fence and Supply Inc), RR-F-191 (Federal Specifications Promulgated by General Services Administration Washington DC), T-17 (Cyclone Fence United States Steel Corp) and 8 more.

What NSN replaces 5660-00-408-8743?

There are 12 known substitutes for 5660-00-408-8743: 5360-00-126-1058, 5965-00-128-2512, 5975-00-284-9258 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RR-F-191/4D ITEM 11?

Key specifications for RR-F-191/4D ITEM 11: Diameter: 2.375 INCHES NOMINAL IN; Post Shape: ROUND; Material: STEEL; Style Designator: ANGLE TYPE/LINE POLE. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5660-00-408-8743 still in active supply?

NSN 5660-00-408-8743 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.
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