PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40349-20Adapter,tie Down

Ancra International Llc · NSN 1670-01-645-2939 · FSC 1670 · No Item Name Available
Verified by PartsTable
NSN 1670-01-645-2939 — this item is cataloged by the U.S. Government under National Stock Number 1670-01-645-2939. Primary manufacturer part number: 40349-20.
Features
  • Adapter,tie Down — FSC 1670
  • 3 verified cross-references
  • Primary manufacturer: Ancra International Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Adapter,tie Down, cataloged under National Stock Number 1670-01-645-2939, is classified within Federal Supply Class 1670 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Ancra International Llc. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameAdapter,tie Down
FSC / FSG1670 — No Item Name Available (FSG 16)
ManufacturersAncra International Llc (CAGE 31272); Aero Defence Pty Ltd (CAGE Z0DP7)
Technical Specifications
ParameterValue
NSN1670-01-645-2939
Primary Part Number40349-20
Item NameAdapter,tie Down
FSC / FSG1670 / 16 — No Item Name Available
ManufacturerAncra International Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5961-00-134-5431 INTERCHANGEABLE
Transistor
3020-00-273-4402 INTERCHANGEABLE
Gear,spur
3040-00-283-22254500-277 INTERCHANGEABLE
Connecting Link,rigid
Tyee Aircraft Inc Div Tyee Aircraft
5915-00-511-8241SM-D-200757 INTERCHANGEABLE
Network,impedance Matching
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-548-0783C10647-1 INTERCHANGEABLE
Transformer,power
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
3020-00-580-385340349 INTERCHANGEABLE
Gear,helical
Honeywell International Inc. Div Aerospace - Torrance
2915-00-605-156140349-2 INTERCHANGEABLE
Parts Kit,valve,cure Date
Meggitt North Hollywood Inc
5961-01-035-6678 INTERCHANGEABLE
Transistor
4930-01-109-957640349 INTERCHANGEABLE
Follower
Mcneil Ohio Corp
2520-01-201-236840349 INTERCHANGEABLE
Ventilator,rear Axle
Dana Light Axle Products, Llc Dba Dana Light Axle Products
Cross-Reference Index
Part NumberManufacturer
40349 Ancra International Llc (USA)
40349-20 PRIMARY Ancra International Llc (USA)
40349-20 Aero Defence Pty Ltd (AUS)
Related Parts
5961-00-134-5431INTERCHANGEABLE
TRANSISTOR
3020-00-273-4402INTERCHANGEABLE
GEAR,SPUR
3040-00-283-2225INTERCHANGEABLE
CONNECTING LINK,RIGID
4500-277
5915-00-511-8241INTERCHANGEABLE
NETWORK,IMPEDANCE MATCHING
SM-D-200757
5950-00-548-0783INTERCHANGEABLE
TRANSFORMER,POWER
C10647-1
3020-00-580-3853INTERCHANGEABLE
GEAR,HELICAL
40349
2915-00-605-1561INTERCHANGEABLE
PARTS KIT,VALVE,CURE DATE
40349-2
5961-01-035-6678INTERCHANGEABLE
TRANSISTOR
4930-01-109-9576INTERCHANGEABLE
FOLLOWER
40349
2520-01-201-2368INTERCHANGEABLE
VENTILATOR,REAR AXLE
40349

Frequently Asked Questions

What is NSN 1670-01-645-2939?

NSN 1670-01-645-2939 is a Adapter,tie Down, manufactured by Ancra International Llc, classified under FSC 1670 (No Item Name Available). Status: active.

What are the part numbers for NSN 1670-01-645-2939?

NSN 1670-01-645-2939 has 3 cross-referenced part numbers: 40349 (Ancra International Llc), 40349-20 (Ancra International Llc), 40349-20 (Aero Defence Pty Ltd).

What NSN replaces 1670-01-645-2939?

There are 10 known substitutes for 1670-01-645-2939: 5961-00-134-5431, 3020-00-273-4402, 3040-00-283-2225 and 7 more. Verify interchangeability with system specifications before substitution.

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