PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20521-1Housing,screwjack

Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging · NSN 1680-00-979-6661 · FSC 1680 · No Item Name Available
Verified by PartsTable
NSN 1680-00-979-6661 — this item is cataloged by the U.S. Government under National Stock Number 1680-00-979-6661. Primary manufacturer part number: 20521-1.
Features
  • Housing,screwjack — FSC 1680
  • 1 verified cross-reference
  • Primary manufacturer: Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Housing,screwjack, cataloged under National Stock Number 1680-00-979-6661, is classified within Federal Supply Class 1680 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameHousing,screwjack
FSC / FSG1680 — No Item Name Available (FSG 16)
ManufacturersSafran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging (CAGE 86831)
Technical Specifications
ParameterValue
NSN1680-00-979-6661
Primary Part Number20521-1
Item NameHousing,screwjack
FSC / FSG1680 / 16 — No Item Name Available
ManufacturerSafran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4310-00-574-19005205211000 INTERCHANGEABLE
Stop,valve
Aerocontrolex Group, Inc.
4820-00-590-916220521-1 INTERCHANGEABLE
Valve,globe
Grove Valve Operations
5998-00-739-282820521-1 INTERCHANGEABLE
Printed Circuit Board
Neurotech Corp Control Electronics Div
6515-01-008-7124 INTERCHANGEABLE
Tubing Assembly,hemodialysis
4820-01-142-8934 INTERCHANGEABLE
Valve,needle
4820-01-393-7499 INTERCHANGEABLE
Valve,globe
5315-01-592-126213046211 INTERCHANGEABLE
Pin,shoulder,headless
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5930-01-655-8684205211 INTERCHANGEABLE
Push Button
John Deere Construction & Forestry Company
Cross-Reference Index
Part NumberManufacturer
20521-1 PRIMARY Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging (USA)
Related Parts
4310-00-574-1900INTERCHANGEABLE
STOP,VALVE
5205211000
4820-00-590-9162INTERCHANGEABLE
VALVE,GLOBE
20521-1
5998-00-739-2828INTERCHANGEABLE
PRINTED CIRCUIT BOARD
20521-1
6515-01-008-7124INTERCHANGEABLE
TUBING ASSEMBLY,HEMODIALYSIS
4820-01-142-8934INTERCHANGEABLE
VALVE,NEEDLE
4820-01-393-7499INTERCHANGEABLE
VALVE,GLOBE
5315-01-592-1262INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
13046211
5930-01-655-8684INTERCHANGEABLE
PUSH BUTTON
205211

Frequently Asked Questions

What is NSN 1680-00-979-6661?

NSN 1680-00-979-6661 is a Housing,screwjack, manufactured by Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging, classified under FSC 1680 (No Item Name Available). Status: active.

What are the part numbers for NSN 1680-00-979-6661?

NSN 1680-00-979-6661 has 1 cross-referenced part number: 20521-1 (Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging).

What NSN replaces 1680-00-979-6661?

There are 8 known substitutes for 1680-00-979-6661: 4310-00-574-1900, 4820-00-590-9162, 5998-00-739-2828 and 5 more. Verify interchangeability with system specifications before substitution.

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