PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

609-1/8Key,socket Head Screw

Hi-Shear Corporation · NSN 5120-00-949-5862 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-949-5862 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-949-5862. Primary manufacturer part number: 609-1/8.
Features
  • Key,socket Head Screw — FSC 5120
  • Features Provided: REPLACEABLE WRENCHING FEATURE
  • Material: STEEL OVERALL
  • Style Designator: FIXED T-HANDLE
  • Wrenching Surface Size: 0.125 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: OXIDE OVERALL
  • Wrenching Surface Shape: HEXAGON SINGLE END EXTERNAL
  • 4 verified cross-references
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 5120-00-949-5862, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Hi-Shear Corporation. Government technical data includes 6 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-949-5862
Primary Part Number609-1/8
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerHi-Shear Corporation
StatusACTIVE
Features ProvidedREPLACEABLE WRENCHING FEATURE
MaterialSTEEL OVERALL
Style DesignatorFIXED T-HANDLE
Wrenching Surface Size0.125 INCHES NOMINAL SINGLE END IN
Surface TreatmentOXIDE OVERALL
Wrenching Surface ShapeHEXAGON SINGLE END EXTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5315-00-550-5454 INTERCHANGEABLE
Pin,spring
5120-00-952-01085120-00-952-0108 INTERCHANGEABLE
Key,socket Head Screw
General Services Administration Federal Supply Service
5977-01-125-142160918 INTERCHANGEABLE
Holder Assembly,electrical Conta
Electro-Tec Corp Dba Moog Inc., Components Group
Cross-Reference Index
Part NumberManufacturer
609-1/8 Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN)
GGG-K-275 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
GGG-K-275 TY6STA General Services Administration Federal Supply Service (USA)
609-1/8 PRIMARY Hi-Shear Corporation (USA)
Related Parts
5315-00-550-5454INTERCHANGEABLE
PIN,SPRING
5120-00-952-0108INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-00-952-0108
5977-01-125-1421INTERCHANGEABLE
HOLDER ASSEMBLY,ELECTRICAL CONTA
60918

Frequently Asked Questions

What is NSN 5120-00-949-5862?

NSN 5120-00-949-5862 is a Key,socket Head Screw, manufactured by Hi-Shear Corporation, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-949-5862?

NSN 5120-00-949-5862 has 4 cross-referenced part numbers: 609-1/8 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), GGG-K-275 (Federal Specifications Promulgated by General Services Administration Washington DC), GGG-K-275 TY6STA (General Services Administration Federal Supply Service), 609-1/8 (Hi-Shear Corporation).

What NSN replaces 5120-00-949-5862?

There are 3 known substitutes for 5120-00-949-5862: 5315-00-550-5454, 5120-00-952-0108, 5977-01-125-1421. Verify interchangeability with system specifications before substitution.

What are the specifications of 609-1/8?

Key specifications for 609-1/8: Overall Width: 2.500 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN; Features Provided: REPLACEABLE WRENCHING FEATURE; Overall Length: 3.250 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN; Material: STEEL OVERALL. 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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