PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20570Valve,assembly,inle

L3harris Technologies, Inc. Div Space and Airborne Systems · NSN 1040-00-300-4263 · FSC 1040 · No Item Name Available
Verified by PartsTable
NSN 1040-00-300-4263 — this item is cataloged by the U.S. Government under National Stock Number 1040-00-300-4263. Primary manufacturer part number: 20570.
Features
  • Valve,assembly,inle — FSC 1040
  • 3 verified cross-references
  • Primary manufacturer: L3harris Technologies, Inc. Div Space and Airborne Systems
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,assembly,inle, cataloged under National Stock Number 1040-00-300-4263, is classified within Federal Supply Class 1040 (No Item Name Available) of the Weapons group. The primary manufacturer of record is L3harris Technologies, Inc. Div Space and Airborne Systems. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,assembly,inle
FSC / FSG1040 — No Item Name Available (FSG 10)
ManufacturersNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (CAGE 10001); L3harris Technologies, Inc. Div Space and Airborne Systems (CAGE 82340); Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (CAGE 30003)
Technical Specifications
ParameterValue
NSN1040-00-300-4263
Primary Part Number20570
Item NameValve,assembly,inle
FSC / FSG1040 / 10 — No Item Name Available
ManufacturerL3harris Technologies, Inc. Div Space and Airborne Systems
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3020-00-055-2109 INTERCHANGEABLE
Gear,spur
5340-00-311-4107205-70 INTERCHANGEABLE
Handle,bow
Cmc of Georgia, Inc.
3750-00-527-804920053 AND 59302 INTERCHANGEABLE
Mower,lawn,power
Toro Co the
5950-00-645-692220570 INTERCHANGEABLE
Transformer,power
Freed Transformer Co
3820-00-800-034720570 INTERCHANGEABLE
Liner Hopper
Eagle Crusher Co Inc Dba Stedman Machine Co
6685-01-058-5984N20570 INTERCHANGEABLE
Yoke
Leslie Controls, Inc. Dba Leslie Controls Inc
3810-01-263-7198 INTERCHANGEABLE
Drive Assembly,load Lowering
5120-01-430-8157 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5340-01-441-964520570 INTERCHANGEABLE
Strap,webbing
Amerex Corporation Dba Amerex Corp
Cross-Reference Index
Part NumberManufacturer
54A50E18 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
20570 PRIMARY L3harris Technologies, Inc. Div Space and Airborne Systems (USA)
54A50E18 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
Related Parts
3020-00-055-2109INTERCHANGEABLE
GEAR,SPUR
5340-00-311-4107INTERCHANGEABLE
HANDLE,BOW
205-70
3750-00-527-8049INTERCHANGEABLE
MOWER,LAWN,POWER
20053 AND 59302
5950-00-645-6922INTERCHANGEABLE
TRANSFORMER,POWER
20570
3820-00-800-0347INTERCHANGEABLE
LINER HOPPER
20570
6685-01-058-5984INTERCHANGEABLE
YOKE
N20570
3810-01-263-7198INTERCHANGEABLE
DRIVE ASSEMBLY,LOAD LOWERING
5120-01-430-8157INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5340-01-441-9645INTERCHANGEABLE
STRAP,WEBBING
20570

Frequently Asked Questions

What is NSN 1040-00-300-4263?

NSN 1040-00-300-4263 is a Valve,assembly,inle, manufactured by L3harris Technologies, Inc. Div Space and Airborne Systems, classified under FSC 1040 (No Item Name Available). Status: active.

What are the part numbers for NSN 1040-00-300-4263?

NSN 1040-00-300-4263 has 3 cross-referenced part numbers: 54A50E18 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 20570 (L3harris Technologies, Inc. Div Space and Airborne Systems), 54A50E18 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).

What NSN replaces 1040-00-300-4263?

There are 9 known substitutes for 1040-00-300-4263: 3020-00-055-2109, 5340-00-311-4107, 3750-00-527-8049 and 6 more. Verify interchangeability with system specifications before substitution.

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