PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5021-6Valve,check

Pima Valve, Llc · NSN 4820-01-682-5978 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-682-5978 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-682-5978. Primary manufacturer part number: 5021-6.
Features
  • Valve,check — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Pima Valve, Llc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,check, cataloged under National Stock Number 4820-01-682-5978, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Pima Valve, Llc. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,check
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersPima Valve, Llc (CAGE 30263); Hunt Valve Company, Inc. (CAGE 11859)
Technical Specifications
ParameterValue
NSN4820-01-682-5978
Primary Part Number5021-6
Item NameValve,check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerPima Valve, Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-034-407457904 INTERCHANGEABLE
Coil,electrical
Hydro-Aire Aerospace Corp
5120-00-222-2211 INTERCHANGEABLE
Mallet,wood
5325-00-297-050450216 INTERCHANGEABLE
Grommet,nonmetallic
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
2805-00-360-73454982734 INTERCHANGEABLE
Insulator
Agco Corp Parts Opn
6520-00-542-74803330-227 INTERCHANGEABLE
Pliers,dental
Benco Dental Supply Co.
6220-01-154-32135730949 INTERCHANGEABLE
Light,gearshift Indicator
Am General Llc
2920-01-195-3890SA733 INTERCHANGEABLE
Starter,engine,electrical
Ford Motor Craft
4810-01-200-839250216 INTERCHANGEABLE
Valve,solenoid
Setra Systems, Inc. Dba Gems Sensors
4240-01-250-226050222-10000 INTERCHANGEABLE
Mask,air Filtering
Square D Co Monroe Plant
4820-01-310-7691 INTERCHANGEABLE
Valve,check
Cross-Reference Index
Part NumberManufacturer
5021-6 Pima Valve, Llc (USA)
NB25620E-WOL Hunt Valve Company, Inc. (USA)
NB25620E-WOL Pima Valve, Llc (USA)
Related Parts
5950-00-034-4074INTERCHANGEABLE
COIL,ELECTRICAL
57904
5120-00-222-2211INTERCHANGEABLE
MALLET,WOOD
5325-00-297-0504INTERCHANGEABLE
GROMMET,NONMETALLIC
50216
2805-00-360-7345INTERCHANGEABLE
INSULATOR
4982734
6520-00-542-7480INTERCHANGEABLE
PLIERS,DENTAL
3330-227
6220-01-154-3213INTERCHANGEABLE
LIGHT,GEARSHIFT INDICATOR
5730949
2920-01-195-3890INTERCHANGEABLE
STARTER,ENGINE,ELECTRICAL
SA733
4810-01-200-8392INTERCHANGEABLE
VALVE,SOLENOID
50216
4240-01-250-2260INTERCHANGEABLE
MASK,AIR FILTERING
50222-10000
4820-01-310-7691INTERCHANGEABLE
VALVE,CHECK
5935-01-310-9333INTERCHANGEABLE
INSERT,ELECTRICAL CONNECTOR
213093-2
6150-01-587-1774INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
209-000308

Frequently Asked Questions

What is NSN 4820-01-682-5978?

NSN 4820-01-682-5978 is a Valve,check, manufactured by Pima Valve, Llc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-682-5978?

NSN 4820-01-682-5978 has 3 cross-referenced part numbers: 5021-6 (Pima Valve, Llc), NB25620E-WOL (Hunt Valve Company, Inc.), NB25620E-WOL (Pima Valve, Llc).

What NSN replaces 4820-01-682-5978?

There are 12 known substitutes for 4820-01-682-5978: 5950-00-034-4074, 5120-00-222-2211, 5325-00-297-0504 and 9 more. Verify interchangeability with system specifications before substitution.

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