PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L-1AValve,regulating,fluid Pressure

Mcnab, Incorporated · NSN 4820-01-170-5325 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-170-5325 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-170-5325. Primary manufacturer part number: L-1A.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Mcnab, Incorporated
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-170-5325, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Mcnab, Incorporated. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersMcnab, Incorporated (CAGE 39425)
Technical Specifications
ParameterValue
NSN4820-01-170-5325
Primary Part NumberL-1A
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerMcnab, Incorporated
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-143-8609CH500 INTERCHANGEABLE
Coil,radio Frequency
Pax Mfg Corp Hammarlund Mfg Co Div
5905-00-295-4042 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
6625-00-348-5793SM-D-700695 INTERCHANGEABLE
Test Set,electrical Power
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6625-00-919-1672 INTERCHANGEABLE
Test Set,electrical Power
6210-01-310-4896L-1A INTERCHANGEABLE
Fixture,lighting
Van Keuren
6230-01-591-1145L1A INTERCHANGEABLE
Flashlight
Viking International Protection
1010-01-611-3465L1AB INTERCHANGEABLE
Sling,small Arms
Lewis Machine & Tool Co. Dba Lewis Machine & Tool Co Inc
Cross-Reference Index
Part NumberManufacturer
L-1A Mcnab, Incorporated (USA)
Related Parts
5950-00-143-8609INTERCHANGEABLE
COIL,RADIO FREQUENCY
CH500
5905-00-295-4042INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
6625-00-348-5793INTERCHANGEABLE
TEST SET,ELECTRICAL POWER
SM-D-700695
6625-00-919-1672INTERCHANGEABLE
TEST SET,ELECTRICAL POWER
6210-01-310-4896INTERCHANGEABLE
FIXTURE,LIGHTING
L-1A
6230-01-591-1145INTERCHANGEABLE
FLASHLIGHT
L1A
1010-01-611-3465INTERCHANGEABLE
SLING,SMALL ARMS
L1AB

Frequently Asked Questions

What is NSN 4820-01-170-5325?

NSN 4820-01-170-5325 is a Valve,regulating,fluid Pressure, manufactured by Mcnab, Incorporated, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-170-5325?

NSN 4820-01-170-5325 has 1 cross-referenced part number: L-1A (Mcnab, Incorporated).

What NSN replaces 4820-01-170-5325?

There are 7 known substitutes for 4820-01-170-5325: 5950-00-143-8609, 5905-00-295-4042, 6625-00-348-5793 and 4 more. Verify interchangeability with system specifications before substitution.

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