PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21506Cap,valve

Schneider Electric Systems Usa Inc · NSN 4820-01-338-2293 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-338-2293 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-338-2293. Primary manufacturer part number: 21506.
Features
  • Cap,valve — FSC 4820
  • Material Document and Classification: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE
  • Material: COPPER ALLOY
  • 3 verified cross-references
  • Primary manufacturer: Schneider Electric Systems Usa Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy construction
General Description

The Cap,valve, cataloged under National Stock Number 4820-01-338-2293, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Schneider Electric Systems Usa Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-338-2293
Primary Part Number21506
Item NameCap,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSchneider Electric Systems Usa Inc
StatusACTIVE
Material Document and ClassificationASTM B61 ASSN STD SINGLE MATERIAL RESPONSE
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
1650-00-168-578421506 INTERCHANGEABLE
Cap,valve
Eaton Aerospace Llc
5120-00-752-903121506 INTERCHANGEABLE
Punch,drive Pin
Mayhew Steel Products Inc
1680-00-760-309421506 INTERCHANGEABLE
Control Assembly,push-Pull
Transdigm Inc
6610-00-919-274021506 INTERCHANGEABLE
Diaphragm Assy
Aerosonic Llc
2990-01-059-9440 INTERCHANGEABLE
Piston
6625-01-070-5910623P INTERCHANGEABLE
Lead Set,test
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
5120-01-123-013221-506 INTERCHANGEABLE
Inserter,seal
Bosch Automotive Service Solutions Ltd
4820-01-228-780421506 INTERCHANGEABLE
Retainer,disk,valve
Barksdale, Inc
4820-01-272-393030561 INTERCHANGEABLE
Stem,fluid Valve
Schneider Electric Systems Usa Inc
6685-01-289-0950G21506 INTERCHANGEABLE
Control,temperature,indicating
National Oil Well Dba Iec Baylor
Cross-Reference Index
Part NumberManufacturer
51676-R PIECE 15 Schneider Electric Systems Usa Inc (USA)
21506 PRIMARY Schneider Electric Systems Usa Inc (USA)
51676-R Schneider Electric Systems Usa Inc (USA)
Related Parts
1650-00-168-5784INTERCHANGEABLE
CAP,VALVE
21506
5120-00-752-9031INTERCHANGEABLE
PUNCH,DRIVE PIN
21506
1680-00-760-3094INTERCHANGEABLE
CONTROL ASSEMBLY,PUSH-PULL
21506
6610-00-919-2740INTERCHANGEABLE
DIAPHRAGM ASSY
21506
2990-01-059-9440INTERCHANGEABLE
PISTON
6625-01-070-5910INTERCHANGEABLE
LEAD SET,TEST
623P
5120-01-123-0132INTERCHANGEABLE
INSERTER,SEAL
21-506
4820-01-228-7804INTERCHANGEABLE
RETAINER,DISK,VALVE
21506
4820-01-272-3930INTERCHANGEABLE
STEM,FLUID VALVE
30561
6685-01-289-0950INTERCHANGEABLE
CONTROL,TEMPERATURE,INDICATING
G21506
2930-01-567-1278INTERCHANGEABLE
COOLER,LUBRICATING OIL,ENGINE
87687372
1005-01-705-8245INTERCHANGEABLE
SEAR
21506

Frequently Asked Questions

What is NSN 4820-01-338-2293?

NSN 4820-01-338-2293 is a Cap,valve, manufactured by Schneider Electric Systems Usa Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-338-2293?

NSN 4820-01-338-2293 has 3 cross-referenced part numbers: 51676-R PIECE 15 (Schneider Electric Systems Usa Inc), 21506 (Schneider Electric Systems Usa Inc), 51676-R (Schneider Electric Systems Usa Inc).

What NSN replaces 4820-01-338-2293?

There are 12 known substitutes for 4820-01-338-2293: 1650-00-168-5784, 5120-00-752-9031, 1680-00-760-3094 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21506?

Key specifications for 21506: Material Document and Classification: ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE; Material: COPPER ALLOY. 2 total characteristics are documented in the Federal Logistics Information System.

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