PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1074-1Valve Flap

Weil-Mclain a Marley Co · NSN 4320-01-083-1754 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-083-1754 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-083-1754. Primary manufacturer part number: 1074-1.
Features
  • Valve Flap — FSC 4320
  • 2 verified cross-references
  • Primary manufacturer: Weil-Mclain a Marley Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Flap, cataloged under National Stock Number 4320-01-083-1754, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Weil-Mclain a Marley Co. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve Flap
FSC / FSG4320 — No Item Name Available (FSG 43)
ManufacturersWeil-Mclain a Marley Co (CAGE 80652)
Technical Specifications
ParameterValue
NSN4320-01-083-1754
Primary Part Number1074-1
Item NameValve Flap
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerWeil-Mclain a Marley Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5360-00-446-3363A10741 INTERCHANGEABLE
Spring,helical,compression
Leslie Controls, Inc. Dba Leslie Controls Inc
4140-00-529-7463 INTERCHANGEABLE
Fan,tubeaxial
6660-00-612-7045 INTERCHANGEABLE
Cylinder Assy,measu
4320-00-899-3881107-41 INTERCHANGEABLE
Pump,rotary
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
5950-01-011-3417SM-D-413623 INTERCHANGEABLE
Transformer,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4130-01-065-1176 INTERCHANGEABLE
Panel,air Control
1730-01-146-527615344 INTERCHANGEABLE
Tube,brake
Moran Equipment Corp
3020-01-210-3560 INTERCHANGEABLE
Nut Socket
5950-01-310-1844107.4-1 INTERCHANGEABLE
Coil,electrical
Ward Leonard Ct Llc
6220-01-334-656310741 INTERCHANGEABLE
Panel,indicating,light Transmitt
Airco Industries, Inc. Dba Photo Etch Div Photo Etch
Cross-Reference Index
Part NumberManufacturer
1074-1 Weil-Mclain a Marley Co (USA)
1074-0001 Weil-Mclain a Marley Co (USA)
Related Parts
5360-00-446-3363INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
A10741
4140-00-529-7463INTERCHANGEABLE
FAN,TUBEAXIAL
6660-00-612-7045INTERCHANGEABLE
CYLINDER ASSY,MEASU
4320-00-899-3881INTERCHANGEABLE
PUMP,ROTARY
107-41
5950-01-011-3417INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
SM-D-413623
4130-01-065-1176INTERCHANGEABLE
PANEL,AIR CONTROL
1730-01-146-5276INTERCHANGEABLE
TUBE,BRAKE
15344
3020-01-210-3560INTERCHANGEABLE
NUT SOCKET
5950-01-310-1844INTERCHANGEABLE
COIL,ELECTRICAL
107.4-1
6220-01-334-6563INTERCHANGEABLE
PANEL,INDICATING,LIGHT TRANSMITT
10741
5310-01-498-1892INTERCHANGEABLE
WASHER,FLAT
1074-1

Frequently Asked Questions

What is NSN 4320-01-083-1754?

NSN 4320-01-083-1754 is a Valve Flap, manufactured by Weil-Mclain a Marley Co, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-083-1754?

NSN 4320-01-083-1754 has 2 cross-referenced part numbers: 1074-1 (Weil-Mclain a Marley Co), 1074-0001 (Weil-Mclain a Marley Co).

What NSN replaces 4320-01-083-1754?

There are 11 known substitutes for 4320-01-083-1754: 5360-00-446-3363, 4140-00-529-7463, 6660-00-612-7045 and 8 more. Verify interchangeability with system specifications before substitution.

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