PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51558Adapter,flexible Sh

Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging · NSN 1680-00-511-5449 · FSC 1680 · No Item Name Available
Verified by PartsTable
NSN 1680-00-511-5449 — this item is cataloged by the U.S. Government under National Stock Number 1680-00-511-5449. Primary manufacturer part number: 51558.
Features
  • Adapter,flexible Sh — 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 Adapter,flexible Sh, cataloged under National Stock Number 1680-00-511-5449, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameAdapter,flexible Sh
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
NSN1680-00-511-5449
Primary Part Number51558
Item NameAdapter,flexible Sh
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 7
4320-00-132-4648 INTERCHANGEABLE
Ring,wearing
3040-00-356-3500SC-C-70650 INTERCHANGEABLE
Detent Plate
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5310-00-576-0900NAS620-3L INTERCHANGEABLE
Washer,flat
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4140-01-115-5976 INTERCHANGEABLE
Impeller,fan,axial
5998-01-135-1530 INTERCHANGEABLE
Printed Wiring Board
4240-01-251-3283 INTERCHANGEABLE
Valve,exhalation,respirator
8345-01-590-1729 INTERCHANGEABLE
Flag,us Army Meddac
Cross-Reference Index
Part NumberManufacturer
51558 PRIMARY Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging (USA)
Related Parts
4320-00-132-4648INTERCHANGEABLE
RING,WEARING
3040-00-356-3500INTERCHANGEABLE
DETENT PLATE
SC-C-70650
5310-00-576-0900INTERCHANGEABLE
WASHER,FLAT
NAS620-3L
4140-01-115-5976INTERCHANGEABLE
IMPELLER,FAN,AXIAL
5998-01-135-1530INTERCHANGEABLE
PRINTED WIRING BOARD
4240-01-251-3283INTERCHANGEABLE
VALVE,EXHALATION,RESPIRATOR
8345-01-590-1729INTERCHANGEABLE
FLAG,US ARMY MEDDAC

Frequently Asked Questions

What is NSN 1680-00-511-5449?

NSN 1680-00-511-5449 is a Adapter,flexible Sh, 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 1680-00-511-5449?

NSN 1680-00-511-5449 has 1 cross-referenced part number: 51558 (Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging).

What NSN replaces 1680-00-511-5449?

There are 7 known substitutes for 1680-00-511-5449: 4320-00-132-4648, 3040-00-356-3500, 5310-00-576-0900 and 4 more. Verify interchangeability with system specifications before substitution.

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