PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1181B60019Key,socket Head Screw

Craig Systems Corp Sub of Eastern Technologies Ltd · NSN 5120-00-259-3474 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-259-3474 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-259-3474. Primary manufacturer part number: 1181B60019.
Features
  • Key,socket Head Screw — FSC 5120
  • Short Arm Length: 1.375 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Wrenching Surface Size: 0.313 INCHES NOMINAL BOTH ENDS IN
  • Style Designator: L-HANDLE
  • Wrenching Surface Shape: HEXAGON BOTH ENDS EXTERNAL
  • Long Arm Length: 4.125 INCHES NOMINAL IN
  • 2 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 5120-00-259-3474, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Craig Systems Corp Sub of Eastern Technologies Ltd. Government technical data includes 6 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-259-3474
Primary Part Number1181B60019
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerCraig Systems Corp Sub of Eastern Technologies Ltd
StatusACTIVE
Short Arm Length1.375 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Wrenching Surface Size0.313 INCHES NOMINAL BOTH ENDS IN
Style DesignatorL-HANDLE
Wrenching Surface ShapeHEXAGON BOTH ENDS EXTERNAL
Long Arm Length4.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5120-00-198-540912113 INTERCHANGEABLE
Key,socket Head Screw
Bondhus Corp
Cross-Reference Index
Part NumberManufacturer
1181B60019 Craig Systems Corp Sub of Eastern Technologies Ltd (USA)
5-16L Allen Mfg Co Sub of Chicago Pneumatic Tool Co (USA)
Related Parts
5120-00-198-5409INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
12113

Frequently Asked Questions

What is NSN 5120-00-259-3474?

NSN 5120-00-259-3474 is a Key,socket Head Screw, manufactured by Craig Systems Corp Sub of Eastern Technologies Ltd, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-259-3474?

NSN 5120-00-259-3474 has 2 cross-referenced part numbers: 1181B60019 (Craig Systems Corp Sub of Eastern Technologies Ltd), 5-16L (Allen Mfg Co Sub of Chicago Pneumatic Tool Co).

What NSN replaces 5120-00-259-3474?

There is 1 known substitute for 5120-00-259-3474: 5120-00-198-5409. Verify interchangeability with system specifications before substitution.

What are the specifications of 1181B60019?

Key specifications for 1181B60019: Overall Length: 4.437 INCHES NOMINAL IN; Short Arm Length: 1.375 INCHES NOMINAL IN; Material: STEEL OVERALL; Wrenching Surface Size: 0.313 INCHES NOMINAL BOTH ENDS IN. 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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