PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D5640 ITEM 2Cap,valve

P J Valves Inc · NSN 4820-01-377-4006 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-377-4006 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-377-4006. Primary manufacturer part number: D5640 ITEM 2.
Features
  • Cap,valve — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: P J Valves Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Cap,valve, cataloged under National Stock Number 4820-01-377-4006, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is P J Valves Inc. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCap,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersP J Valves Inc (CAGE 17062)
Technical Specifications
ParameterValue
NSN4820-01-377-4006
Primary Part NumberD5640 ITEM 2
Item NameCap,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerP J Valves Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4820-01-377-4007 INTERCHANGEABLE
Seat,valve
4820-01-377-4008 INTERCHANGEABLE
Retainer,disk,valve
4820-01-377-4009 INTERCHANGEABLE
Disk,valve
4820-01-377-4589D5640 ITEM 4 INTERCHANGEABLE
Hinge,swing Check Valve
Hunt Valve Company, Inc.
4820-01-377-6963 INTERCHANGEABLE
Valve,check
Cross-Reference Index
Part NumberManufacturer
D5640 ITEM 2 P J Valves Inc (USA)
C5643 P J Valves Inc (USA)
D5640 P J Valves Inc (USA)
Related Parts
4820-01-377-4007INTERCHANGEABLE
SEAT,VALVE
4820-01-377-4008INTERCHANGEABLE
RETAINER,DISK,VALVE
4820-01-377-4009INTERCHANGEABLE
DISK,VALVE
4820-01-377-4589INTERCHANGEABLE
HINGE,SWING CHECK VALVE
D5640 ITEM 4
4820-01-377-6963INTERCHANGEABLE
VALVE,CHECK

Frequently Asked Questions

What is NSN 4820-01-377-4006?

NSN 4820-01-377-4006 is a Cap,valve, manufactured by P J Valves Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-377-4006?

NSN 4820-01-377-4006 has 3 cross-referenced part numbers: D5640 ITEM 2 (P J Valves Inc), C5643 (P J Valves Inc), D5640 (P J Valves Inc).

What NSN replaces 4820-01-377-4006?

There are 5 known substitutes for 4820-01-377-4006: 4820-01-377-4007, 4820-01-377-4008, 4820-01-377-4009 and 2 more. Verify interchangeability with system specifications before substitution.

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