NSN 4940-01-343-1900 — this item is cataloged by the U.S. Government under National Stock Number 4940-01-343-1900. Manufacturer of record part number: 45-0405-1.
Also searched as4940-01-343-1900 ·
4940013431900 ·
NIIN 013431900 ·
01-343-1900 ·
FSC 4940 Miscellaneous Maintenance and Repair Shop Specialized Equipment · CAGE 09552 · 45-0405-1 · 42-0405-1
General Characteristics Item Description: CIRCULAR,3.500 IN. DIA,1.312 IN. WIDE; -1 USED AS ADAPTER,BOSS IN
1 manufacturer part number on file
Manufacturer of record: Atec Inc
Identification
NSN: 4940-01-343-1900
NIIN: 013431900
FSC: 4940 — Miscellaneous Maintenance and Repair Shop Specialized Equipment
FSG: 49 — Maintenance and Repair Shop Equipment
Primary part number: 45-0405-1
Manufacturer: Atec Inc
General Description
The Adapter,mechanical Test, cataloged under National Stock Number 4940-01-343-1900, is classified within Federal Supply Class 4940 (Miscellaneous Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Atec Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Other items in FSC 4940 — Miscellaneous Maintenance and Repair Shop Specialized Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4940-00-001-1283
4940-00-001-1283 · Item name not on file
4940-00-001-1286
4940-00-001-1286 · Item name not on file
4940-00-001-5394
4940-00-001-5394 · Item name not on file
4940-00-001-6355
4940-00-001-6355 · Item name not on file
4940-00-001-9583
DEGREASER
4940-00-003-1045
4940-00-003-1045 · Item name not on file
4940-00-003-1047
4940-00-003-1047 · Item name not on file
4940-00-003-1050
4940-00-003-1050 · Item name not on file
Frequently Asked Questions
What is NSN 4940-01-343-1900?
NSN 4940-01-343-1900 is a Adapter,mechanical Test, manufactured by Atec Inc, classified under FSC 4940, Miscellaneous Maintenance and Repair Shop Specialized Equipment. Status: active.
What part numbers are listed for NSN 4940-01-343-1900?
NSN 4940-01-343-1900 has 1 manufacturer part number on file: 45-0405-1 (Atec Inc).
What are the specifications of 45-0405-1?
Key specifications for 45-0405-1: General Characteristics Item Description: CIRCULAR,3.500 IN. DIA,1.312 IN. WIDE; -1 USED AS ADAPTER,BOSS IN; End Item Identification: 100-PW100 ENGINE AGE.. 1 specification is documented in the U.S. Government catalog.
Is NSN 4940-01-343-1900 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.