PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40456Clamp,block

L3harris Technologies, Inc Div Space & Airborne Systems · NSN 5340-00-699-8912 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-699-8912 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-699-8912. Primary manufacturer part number: 40456.
Features
  • Clamp,block — FSC 5340
  • 1 verified cross-reference
  • Primary manufacturer: L3harris Technologies, Inc Div Space & Airborne Systems
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Clamp,block, cataloged under National Stock Number 5340-00-699-8912, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Technologies, Inc Div Space & Airborne Systems. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-699-8912
Primary Part Number40456
Item NameClamp,block
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerL3harris Technologies, Inc Div Space & Airborne Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 3
3455-00-541-619713550 INTERCHANGEABLE
Cutter,milling,convex
Niagara Cutter Inc
2805-00-875-8165992P INTERCHANGEABLE
Piston,internal Combustion Engin
Federal-Mogul Corp Government Sales Dept
2540-01-412-3866 INTERCHANGEABLE
Coupler,drawbar,ring
Cross-Reference Index
Part NumberManufacturer
40456 PRIMARY L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
3455-00-541-6197INTERCHANGEABLE
CUTTER,MILLING,CONVEX
13550
2805-00-875-8165INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
992P
2540-01-412-3866INTERCHANGEABLE
COUPLER,DRAWBAR,RING

Frequently Asked Questions

What is NSN 5340-00-699-8912?

NSN 5340-00-699-8912 is a Clamp,block, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-699-8912?

NSN 5340-00-699-8912 has 1 cross-referenced part number: 40456 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 5340-00-699-8912?

There are 3 known substitutes for 5340-00-699-8912: 3455-00-541-6197, 2805-00-875-8165, 2540-01-412-3866. Verify interchangeability with system specifications before substitution.

What are the specifications of 40456?

Key specifications for 40456: Special Features: BLOCK CLAMP ASSY; End Item Identification: E/I UNKNOWN. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com