PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

99974Filter Element,air Conditioning

Hamilton Sundstrand Corporation Dba Collins Aerospace · NSN 1660-01-344-3350 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-01-344-3350 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-344-3350. Primary manufacturer part number: 99974.
Features
  • Filter Element,air Conditioning — FSC 1660
  • Filtering Media Design: MESH ALL FILTERING MEDIA RESPONSES
  • FSC Application Data: ENVIRONMENTAL CONTROL SYSTEM
  • Mesh Size: 100.0
  • 1 verified cross-reference
  • Primary manufacturer: Hamilton Sundstrand Corporation Dba Collins Aerospace
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Filter Element,air Conditioning, cataloged under National Stock Number 1660-01-344-3350, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1660-01-344-3350
Primary Part Number99974
Item NameFilter Element,air Conditioning
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerHamilton Sundstrand Corporation Dba Collins Aerospace
StatusACTIVE
Filtering Media DesignMESH ALL FILTERING MEDIA RESPONSES
FSC Application DataENVIRONMENTAL CONTROL SYSTEM
Mesh Size100.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2805-00-360-707899974 INTERCHANGEABLE
Housing,blower
Briggs and Stratton Corp
5940-00-502-7283MS21981-165 INTERCHANGEABLE
Ferrule,metallic Shielded Cable,
Sae International Dba Sae International
5330-00-509-461799974 INTERCHANGEABLE
Gasket
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
4220-01-372-511399-974 INTERCHANGEABLE
Cylinder Assembly,air,diving Equ
Switlik Parachute Company, Inc. Dba Switlik Parachute Co Inc
Cross-Reference Index
Part NumberManufacturer
99974 PRIMARY Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
Related Parts
2805-00-360-7078INTERCHANGEABLE
HOUSING,BLOWER
99974
5940-00-502-7283INTERCHANGEABLE
FERRULE,METALLIC SHIELDED CABLE,
MS21981-165
5330-00-509-4617INTERCHANGEABLE
GASKET
99974
4220-01-372-5113INTERCHANGEABLE
CYLINDER ASSEMBLY,AIR,DIVING EQU
99-974

Frequently Asked Questions

What is NSN 1660-01-344-3350?

NSN 1660-01-344-3350 is a Filter Element,air Conditioning, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-01-344-3350?

NSN 1660-01-344-3350 has 1 cross-referenced part number: 99974 (Hamilton Sundstrand Corporation Dba Collins Aerospace).

What NSN replaces 1660-01-344-3350?

There are 4 known substitutes for 1660-01-344-3350: 2805-00-360-7078, 5940-00-502-7283, 5330-00-509-4617 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 99974?

Key specifications for 99974: End Item Identification: F-104 ACFT; Filtering Media Design: MESH ALL FILTERING MEDIA RESPONSES; FSC Application Data: ENVIRONMENTAL CONTROL SYSTEM; Mesh Size: 100.0. 6 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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