PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

620-100-26Piston,valve

Fastener Specialty, Inc. · NSN 4820-01-049-6743 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-049-6743 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-049-6743. Primary manufacturer part number: 620-100-26.
Features
  • Piston,valve — FSC 4820
  • 6 verified cross-references
  • Primary manufacturer: Fastener Specialty, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-049-6743, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Fastener Specialty, Inc.. This item has 6 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 NamePiston,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersPauli Systems, Inc. Dba Pauli Systems Inc (CAGE 06UZ8); Pauli and Griffin Co Inc (CAGE 86413); Fastener Specialty, Inc. (CAGE 04967)
Technical Specifications
ParameterValue
NSN4820-01-049-6743
Primary Part Number620-100-26
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerFastener Specialty, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
2920-00-378-0578 INTERCHANGEABLE
Plate
5935-00-563-2293 INTERCHANGEABLE
Jack,tip
2090-00-589-6381354-20 INTERCHANGEABLE
Arm,windshield Wiper
Cornell-Carr Co., Inc.
5342-00-733-777435402-0 INTERCHANGEABLE
Clip,mounting,high
Kidde Technologies, Inc Dba Fenwal Safety Systems Div Fenwall Safety Systems
4510-00-757-4095354020 INTERCHANGEABLE
Stem Assembly,faucet
Cr/pl Llc
6210-01-007-9818351-50078-002 INTERCHANGEABLE
Light,indicator
Safran Aerosystems Mexico S De Rl De Cv
4810-01-284-424735420 INTERCHANGEABLE
Valve,solenoid
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
5930-01-385-882783746000 INTERCHANGEABLE
Switch,push
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
3040-01-518-7121 INTERCHANGEABLE
Gearshaft,spur
Cross-Reference Index
Part NumberManufacturer
410279-C21 Pauli Systems, Inc. Dba Pauli Systems Inc (USA)
410279-C21 Pauli and Griffin Co Inc (USA)
620-100-26 PRIMARY Fastener Specialty, Inc. (USA)
354-20 Pauli and Griffin Co Inc (USA)
354-020 Pauli and Griffin Co Inc (USA)
620-100-26 Pauli and Griffin Co Inc (USA)
Related Parts
2920-00-378-0578INTERCHANGEABLE
PLATE
5935-00-563-2293INTERCHANGEABLE
JACK,TIP
2090-00-589-6381INTERCHANGEABLE
ARM,WINDSHIELD WIPER
354-20
5342-00-733-7774INTERCHANGEABLE
CLIP,MOUNTING,HIGH
35402-0
4510-00-757-4095INTERCHANGEABLE
STEM ASSEMBLY,FAUCET
354020
6210-01-007-9818INTERCHANGEABLE
LIGHT,INDICATOR
351-50078-002
4810-01-284-4247INTERCHANGEABLE
VALVE,SOLENOID
35420
5930-01-385-8827INTERCHANGEABLE
SWITCH,PUSH
83746000
3040-01-518-7121INTERCHANGEABLE
GEARSHAFT,SPUR

Frequently Asked Questions

What is NSN 4820-01-049-6743?

NSN 4820-01-049-6743 is a Piston,valve, manufactured by Fastener Specialty, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-049-6743?

NSN 4820-01-049-6743 has 6 cross-referenced part numbers: 410279-C21 (Pauli Systems, Inc. Dba Pauli Systems Inc), 410279-C21 (Pauli and Griffin Co Inc), 620-100-26 (Fastener Specialty, Inc.), 354-20 (Pauli and Griffin Co Inc), 354-020 (Pauli and Griffin Co Inc) and 1 more.

What NSN replaces 4820-01-049-6743?

There are 9 known substitutes for 4820-01-049-6743: 2920-00-378-0578, 5935-00-563-2293, 2090-00-589-6381 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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