PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

118001Valve,restrictor Check

Lake Shore Systems, Inc. · NSN 4820-01-187-1882 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-187-1882 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-187-1882. Primary manufacturer part number: 118001.
Features
  • Valve,restrictor Check — FSC 4820
  • Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS
  • Mounting Position: HORIZONTAL
  • Thread Direction: RIGHT-HAND ALL ENDS
  • Thread Series Designator: NPT ALL ENDS
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Style Designator: STRAIGHT THRU
  • Nominal Thread Size: 1.000 INCHES ALL ENDS IN
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Body construction
General Description

The Valve,restrictor Check, cataloged under National Stock Number 4820-01-187-1882, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Lake Shore Systems, Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-187-1882
Primary Part Number118001
Item NameValve,restrictor Check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerLake Shore Systems, Inc.
StatusACTIVE
Connection StylePLAIN, OPTIONAL END (PIPE) ALL ENDS
Mounting PositionHORIZONTAL
Thread DirectionRIGHT-HAND ALL ENDS
Thread Series DesignatorNPT ALL ENDS
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Style DesignatorSTRAIGHT THRU
Nominal Thread Size1.000 INCHES ALL ENDS IN
MaterialSTEEL BODY
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Valve Operation MethodAUTOMATIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5315-00-011-8001MS35756-113 INTERCHANGEABLE
Key,woodruff
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3439-00-081-8320300ADP INTERCHANGEABLE
Power Unit,resistance Heating,so
Amada Weld Tech Inc Dba Miyachi Unitek Corp
6105-00-415-6434 INTERCHANGEABLE
Motor,alternating Current
5950-01-014-1784662-0518-010 INTERCHANGEABLE
Transformer,power
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5330-01-103-1533 INTERCHANGEABLE
Seal,special
5905-01-141-4227118-001 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Autek Systems Corp
4820-01-187-1839318514 ITEM 11 INTERCHANGEABLE
Valve,check
Lake Shore Systems, Inc.
4820-01-187-1840318514 ITEM 61 INTERCHANGEABLE
Valve,check
Lake Shore Systems, Inc.
4820-01-188-0714318514 ITEM 13 INTERCHANGEABLE
Valve,needle
Lake Shore Systems, Inc.
6130-01-394-3337 INTERCHANGEABLE
Power Supply
Cross-Reference Index
Part NumberManufacturer
318514 Lake Shore Systems, Inc. (USA)
318514 ITEM 10 Lake Shore Systems, Inc. (USA)
6631-1S2-44 Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit (USA)
118001 PRIMARY Lake Shore Systems, Inc. (USA)
Related Parts
5315-00-011-8001INTERCHANGEABLE
KEY,WOODRUFF
MS35756-113
3439-00-081-8320INTERCHANGEABLE
POWER UNIT,RESISTANCE HEATING,SO
300ADP
6105-00-415-6434INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
5950-01-014-1784INTERCHANGEABLE
TRANSFORMER,POWER
662-0518-010
5330-01-103-1533INTERCHANGEABLE
SEAL,SPECIAL
5905-01-141-4227INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
118-001
4820-01-187-1839INTERCHANGEABLE
VALVE,CHECK
318514 ITEM 11
4820-01-187-1840INTERCHANGEABLE
VALVE,CHECK
318514 ITEM 61
4820-01-188-0714INTERCHANGEABLE
VALVE,NEEDLE
318514 ITEM 13
6130-01-394-3337INTERCHANGEABLE
POWER SUPPLY

Frequently Asked Questions

What is NSN 4820-01-187-1882?

NSN 4820-01-187-1882 is a Valve,restrictor Check, manufactured by Lake Shore Systems, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-187-1882?

NSN 4820-01-187-1882 has 4 cross-referenced part numbers: 318514 (Lake Shore Systems, Inc.), 318514 ITEM 10 (Lake Shore Systems, Inc.), 6631-1S2-44 (Teledyne Industries Inc Teledyne Fluid Systems Republic Business Unit), 118001 (Lake Shore Systems, Inc.).

What NSN replaces 4820-01-187-1882?

There are 10 known substitutes for 4820-01-187-1882: 5315-00-011-8001, 3439-00-081-8320, 6105-00-415-6434 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 118001?

Key specifications for 118001: Connection Style: PLAIN, OPTIONAL END (PIPE) ALL ENDS; Mounting Position: HORIZONTAL; Thread Direction: RIGHT-HAND ALL ENDS; Thread Series Designator: NPT ALL ENDS. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com