PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H550-3Latch Assembly

Hartwell Corporation · NSN 1680-00-199-6958 · FSC 1680 · No Item Name Available
Verified by PartsTable
NSN 1680-00-199-6958 — this item is cataloged by the U.S. Government under National Stock Number 1680-00-199-6958. Primary manufacturer part number: H550-3.
Features
  • Latch Assembly — FSC 1680
  • 2 verified cross-references
  • Primary manufacturer: Hartwell Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Latch Assembly, cataloged under National Stock Number 1680-00-199-6958, is classified within Federal Supply Class 1680 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Hartwell Corporation. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1680-00-199-6958
Primary Part NumberH550-3
Item NameLatch Assembly
FSC / FSG1680 / 16 — No Item Name Available
ManufacturerHartwell Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6625-00-168-0309 INTERCHANGEABLE
Ammeter
5950-00-518-2052 INTERCHANGEABLE
Reactor
5325-01-214-4910H-5503 INTERCHANGEABLE
Ring,retaining
W.w. Grainger, Inc. Div Government Sales Division
Cross-Reference Index
Part NumberManufacturer
7958534-505 The Boeing Company (USA)
H550-3 PRIMARY Hartwell Corporation (USA)
Related Parts
6625-00-168-0309INTERCHANGEABLE
AMMETER
5950-00-518-2052INTERCHANGEABLE
REACTOR
5325-01-214-4910INTERCHANGEABLE
RING,RETAINING
H-5503

Frequently Asked Questions

What is NSN 1680-00-199-6958?

NSN 1680-00-199-6958 is a Latch Assembly, manufactured by Hartwell Corporation, classified under FSC 1680 (No Item Name Available). Status: active.

What are the part numbers for NSN 1680-00-199-6958?

NSN 1680-00-199-6958 has 2 cross-referenced part numbers: 7958534-505 (The Boeing Company), H550-3 (Hartwell Corporation).

What NSN replaces 1680-00-199-6958?

There are 3 known substitutes for 1680-00-199-6958: 6625-00-168-0309, 5950-00-518-2052, 5325-01-214-4910. Verify interchangeability with system specifications before substitution.

What are the specifications of H550-3?

Key specifications for H550-3: End Item Identification: DOUGLAS DC9. 1 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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