NSN 4140-01-183-8348 · NIIN 011838348 · Part number 12331990
U S Army Tank Automotive Command Amsta-Im-Mm · FSC 4140 — Fans, Air Circulators, and Blower Equipment · FSG 41 — Refrigeration, AC, and Air Circulating Equipment · CAGE 19207
Government record, cited
NSN 4140-01-183-8348 — this item is cataloged by the U.S. Government under National Stock Number 4140-01-183-8348. Manufacturer of record part number: 12331990.
Also searched as4140-01-183-8348 ·
4140011838348 ·
NIIN 011838348 ·
01-183-8348 ·
FSC 4140 Fans, Air Circulators, and Blower Equipment · CAGE 19207 · 12331990
Nearby stock numbers← 4140-01-183-7586
·
4140-01-183-8567 Guard, Fan Impeller →
Manufacturer of record: U S Army Tank Automotive Command Amsta-Im-Mm
Identification
NSN: 4140-01-183-8348
NIIN: 011838348
FSC: 4140 — Fans, Air Circulators, and Blower Equipment
FSG: 41 — Refrigeration, AC, and Air Circulating Equipment
Primary part number: 12331990
Manufacturer: U S Army Tank Automotive Command Amsta-Im-Mm
General Description
The Tensioner Assy,fan, cataloged under National Stock Number 4140-01-183-8348, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4140-01-183-8348
Primary Part Number
12331990
Item Name
Tensioner Assy,fan
FSC / FSG
4140 / 41 — Fans, Air Circulators, and Blower Equipment
U S Army Tank Automotive Command Amsta-Im-Mm (USA)
No interchangeability data on file.
Other items in FSC 4140 — Fans, Air Circulators, and Blower Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4140-00-000-0082
IMPELLER,FAN,AXIAL
4140-00-001-1517
FAN,CENTRIFUGAL
4140-00-001-1536
FAN,VENTILATING
4140-00-001-1537
4140-00-001-1537 · Item name not on file
4140-00-001-3930
4140-00-001-3930 · Item name not on file
4140-00-001-6464
4140-00-001-6464 · Item name not on file
4140-00-001-6874
4140-00-001-6874 · Item name not on file
4140-00-001-6875
4140-00-001-6875 · Item name not on file
Frequently Asked Questions
What is NSN 4140-01-183-8348?
NSN 4140-01-183-8348 is a Tensioner Assy,fan, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
What part numbers are listed for NSN 4140-01-183-8348?
NSN 4140-01-183-8348 has 1 manufacturer part number on file: 12331990 (U S Army Tank Automotive Command Amsta-Im-Mm).
What are the specifications of 12331990?
Key specifications for 12331990: General Characteristics Item Description: CONSISTS OF NUT,P/N MS51968-2,FSCM 19207,2 REQD; WASHER,P/N MS35338-44,FSCM 19207,2 REQD; PLATE,P/N 12331991,FSCM 19207; RETAINER,P/N 12331992,FSCM19207; SPRING,P/N 12331995,FSCM 19207;PLATE,P/N 12331999,FSCM 19207; SCREW,P/N MS21318-14,FSCM 19207,4 REQD. 1 specification is documented in the U.S. Government catalog.
Is NSN 4140-01-183-8348 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.