PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WR100-18Key,socket Head Screw

The Technical Material Corporation Dba T M C · NSN 5120-00-971-6809 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-971-6809 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-971-6809. Primary manufacturer part number: WR100-18.
Features
  • Key,socket Head Screw — FSC 5120
  • Material: STEEL OVERALL
  • Style Designator: L-HANDLE
  • Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL
  • Short Arm Length: 0.609 INCHES NOMINAL IN
  • Wrenching Surface Size: 0.078 INCHES NOMINAL BOTH ENDS IN
  • Long Arm Length: 6.000 INCHES NOMINAL IN
  • Surface Treatment: CHROMIUM AND NICKEL AND OXIDE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Key,socket Head Screw, cataloged under National Stock Number 5120-00-971-6809, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Technical Material Corporation Dba T M C. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-971-6809
Primary Part NumberWR100-18
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Technical Material Corporation Dba T M C
StatusACTIVE
MaterialSTEEL OVERALL
Style DesignatorL-HANDLE
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
Short Arm Length0.609 INCHES NOMINAL IN
Wrenching Surface Size0.078 INCHES NOMINAL BOTH ENDS IN
Long Arm Length6.000 INCHES NOMINAL IN
Surface TreatmentCHROMIUM AND NICKEL AND OXIDE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5133-00-189-9249 INTERCHANGEABLE
Drill,twist
3020-00-390-807072004 INTERCHANGEABLE
Gear,spur
Honeywell International Inc. Div Aerospace - Torrance
5360-01-046-1137MFG72-004 INTERCHANGEABLE
Spring
Parker-Hannifin Corporation Dba Pneutronics Div Pneumatic Division
5950-01-065-504772004 INTERCHANGEABLE
Coil,radio Frequency
Magnetic Component Engineering, Llc Dba Magnetic Component Engineering Inc
6510-01-196-620372004 INTERCHANGEABLE
Bandage,cast,impregnated
Solventum Us Llc
5325-01-598-383772004 INTERCHANGEABLE
Receptacle,positive Lock
Parker-Hannifin Corporation Div Stratoflex Products Division Coupling Business Unit
Cross-Reference Index
Part NumberManufacturer
WR100-18 The Technical Material Corporation Dba T M C (USA)
GGG-K-275 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
72004 Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
GGG-K-275 TY1CL2 General Services Administration Federal Supply Service (USA)
Related Parts
5133-00-189-9249INTERCHANGEABLE
DRILL,TWIST
3020-00-390-8070INTERCHANGEABLE
GEAR,SPUR
72004
5360-01-046-1137INTERCHANGEABLE
SPRING
MFG72-004
5950-01-065-5047INTERCHANGEABLE
COIL,RADIO FREQUENCY
72004
6510-01-196-6203INTERCHANGEABLE
BANDAGE,CAST,IMPREGNATED
72004
5325-01-598-3837INTERCHANGEABLE
RECEPTACLE,POSITIVE LOCK
72004

Frequently Asked Questions

What is NSN 5120-00-971-6809?

NSN 5120-00-971-6809 is a Key,socket Head Screw, manufactured by The Technical Material Corporation Dba T M C, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-971-6809?

NSN 5120-00-971-6809 has 4 cross-referenced part numbers: WR100-18 (The Technical Material Corporation Dba T M C), GGG-K-275 (Federal Specifications Promulgated by General Services Administration Washington DC), 72004 (Allen Mfg Co Sub of Chicago Pneumatic Tool Co), GGG-K-275 TY1CL2 (General Services Administration Federal Supply Service).

What NSN replaces 5120-00-971-6809?

There are 6 known substitutes for 5120-00-971-6809: 5133-00-189-9249, 3020-00-390-8070, 5360-01-046-1137 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of WR100-18?

Key specifications for WR100-18: Material: STEEL OVERALL; Style Designator: L-HANDLE; Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL; Short Arm Length: 0.609 INCHES NOMINAL IN. 8 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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