PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A429Block,mounting

Simmonds Precision Products Inc · NSN 1680-00-909-9677 · FSC 1680 · No Item Name Available
Verified by PartsTable
NSN 1680-00-909-9677 — this item is cataloged by the U.S. Government under National Stock Number 1680-00-909-9677. Primary manufacturer part number: A429.
Features
  • Block,mounting — FSC 1680
  • 1 verified cross-reference
  • Primary manufacturer: Simmonds Precision Products Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Block,mounting, cataloged under National Stock Number 1680-00-909-9677, is classified within Federal Supply Class 1680 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Simmonds Precision Products Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBlock,mounting
FSC / FSG1680 — No Item Name Available (FSG 16)
ManufacturersSimmonds Precision Products Inc (CAGE 12511)
Technical Specifications
ParameterValue
NSN1680-00-909-9677
Primary Part NumberA429
Item NameBlock,mounting
FSC / FSG1680 / 16 — No Item Name Available
ManufacturerSimmonds Precision Products Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
1680-00-552-6973 INTERCHANGEABLE
Bushing
5315-00-922-9031A429 INTERCHANGEABLE
Pin,grooved,headless
Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc
5998-01-178-9007 INTERCHANGEABLE
Circuit Card Assembly
4320-01-208-7196A429 INTERCHANGEABLE
Impeller,pump,centrifugal
Circor Naval Solutions Llc Dba Warren Pumps
Cross-Reference Index
Part NumberManufacturer
A429 PRIMARY Simmonds Precision Products Inc (USA)
Related Parts
1680-00-552-6973INTERCHANGEABLE
BUSHING
5315-00-922-9031INTERCHANGEABLE
PIN,GROOVED,HEADLESS
A429
5998-01-178-9007INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4320-01-208-7196INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
A429

Frequently Asked Questions

What is NSN 1680-00-909-9677?

NSN 1680-00-909-9677 is a Block,mounting, manufactured by Simmonds Precision Products Inc, classified under FSC 1680 (No Item Name Available). Status: active.

What are the part numbers for NSN 1680-00-909-9677?

NSN 1680-00-909-9677 has 1 cross-referenced part number: A429 (Simmonds Precision Products Inc).

What NSN replaces 1680-00-909-9677?

There are 4 known substitutes for 1680-00-909-9677: 1680-00-552-6973, 5315-00-922-9031, 5998-01-178-9007 and 1 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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