PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

34HC173Vent Assembly,tract

Oshkosh Defense Llc · NSN 1740-00-113-8774 · FSC 1740 · No Item Name Available
Verified by PartsTable
NSN 1740-00-113-8774 — this item is cataloged by the U.S. Government under National Stock Number 1740-00-113-8774. Primary manufacturer part number: 34HC173.
Features
  • Vent Assembly,tract — FSC 1740
  • 3 verified cross-references
  • Primary manufacturer: Oshkosh Defense Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Vent Assembly,tract, cataloged under National Stock Number 1740-00-113-8774, is classified within Federal Supply Class 1740 (No Item Name Available) of the Aircraft Launch, Landing, and Ground Handling Equipment group. The primary manufacturer of record is Oshkosh Defense Llc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameVent Assembly,tract
FSC / FSG1740 — No Item Name Available (FSG 17)
ManufacturersOshkosh Defense Llc (CAGE 75Q65); Truck Cab Mfrs Inc (CAGE 98882); Oshkosh Corp (CAGE 45152)
Technical Specifications
ParameterValue
NSN1740-00-113-8774
Primary Part Number34HC173
Item NameVent Assembly,tract
FSC / FSG1740 / 17 — No Item Name Available
ManufacturerOshkosh Defense Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5330-01-016-960170501 INTERCHANGEABLE
Seal,plain Encased
Dressta North America Ltd
5331-01-063-9046705-01 INTERCHANGEABLE
O-Ring
Norgren C a Co
5945-01-165-1065B301EA INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
5120-01-434-9230 INTERCHANGEABLE
Bar,pinch
5130-01-598-886570-501 INTERCHANGEABLE
Rivet Set,pneumatic Tool
Us Air Tool Co., Inc.
Cross-Reference Index
Part NumberManufacturer
34HC173 PRIMARY Oshkosh Defense Llc (USA)
70-50-1 Truck Cab Mfrs Inc (USA)
34HC173 Oshkosh Corp (USA)
Related Parts
5330-01-016-9601INTERCHANGEABLE
SEAL,PLAIN ENCASED
70501
5331-01-063-9046INTERCHANGEABLE
O-RING
705-01
5945-01-165-1065INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
B301EA
5120-01-434-9230INTERCHANGEABLE
BAR,PINCH
5130-01-598-8865INTERCHANGEABLE
RIVET SET,PNEUMATIC TOOL
70-501

Frequently Asked Questions

What is NSN 1740-00-113-8774?

NSN 1740-00-113-8774 is a Vent Assembly,tract, manufactured by Oshkosh Defense Llc, classified under FSC 1740 (No Item Name Available). Status: active.

What are the part numbers for NSN 1740-00-113-8774?

NSN 1740-00-113-8774 has 3 cross-referenced part numbers: 34HC173 (Oshkosh Defense Llc), 70-50-1 (Truck Cab Mfrs Inc), 34HC173 (Oshkosh Corp).

What NSN replaces 1740-00-113-8774?

There are 5 known substitutes for 1740-00-113-8774: 5330-01-016-9601, 5331-01-063-9046, 5945-01-165-1065 and 2 more. Verify interchangeability with system specifications before substitution.

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