PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

301.1/2-3/51Disk,valve

Apco/valve & Primer Corp · NSN 4820-01-149-7868 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-149-7868 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-149-7868. Primary manufacturer part number: 301.1/2-3/51.
Features
  • Disk,valve — FSC 4820
  • Material: COPPER ALLOY
  • 3 verified cross-references
  • Primary manufacturer: Apco/valve & Primer Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-149-7868, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Apco/valve & Primer Corp. Government technical data includes 1 verified specification, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-149-7868
Primary Part Number301.1/2-3/51
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerApco/valve & Primer Corp
StatusACTIVE
MaterialCOPPER ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6250-00-023-6868MS-11 INTERCHANGEABLE
Lampholder
Major Liting Inc
5315-00-854-3175S300 INTERCHANGEABLE
Pin
Cummins Inc.
5331-00-859-6340S300 INTERCHANGEABLE
O-Ring
The Gorman-Rupp Company Div Gorman-Rupp
5120-01-072-9780 INTERCHANGEABLE
Wrench,torque
5331-01-198-4682 INTERCHANGEABLE
O-Ring
5130-01-201-4980S-300N INTERCHANGEABLE
Blind Nut Setter
Fastening Systems International
4820-01-299-5678 INTERCHANGEABLE
Valve,check
3460-01-353-8107S-300 INTERCHANGEABLE
Sleeve,expansion Mandrel
Sunnen Products Co
6605-01-554-780331-383-1-41 INTERCHANGEABLE
Sensor,speed Log,electromagnetic
Airmar Technology Corp Dba Airmar Technology Corp
3805-01-569-6681S300 INTERCHANGEABLE
Loader,scoop Type
Doosan Bobcat North America, Inc. Div Bobcat Company
Cross-Reference Index
Part NumberManufacturer
S-300PNUMBER 3 1 1/2IN Apco/valve & Primer Corp (USA)
301.1/2-3/51 PRIMARY Apco/valve & Primer Corp (USA)
S-300 Apco/valve & Primer Corp (USA)
Related Parts
6250-00-023-6868INTERCHANGEABLE
LAMPHOLDER
MS-11
5315-00-854-3175INTERCHANGEABLE
PIN
S300
5331-00-859-6340INTERCHANGEABLE
O-RING
S300
5120-01-072-9780INTERCHANGEABLE
WRENCH,TORQUE
5331-01-198-4682INTERCHANGEABLE
O-RING
5130-01-201-4980INTERCHANGEABLE
BLIND NUT SETTER
S-300N
4820-01-299-5678INTERCHANGEABLE
VALVE,CHECK
3460-01-353-8107INTERCHANGEABLE
SLEEVE,EXPANSION MANDREL
S-300
6605-01-554-7803INTERCHANGEABLE
SENSOR,SPEED LOG,ELECTROMAGNETIC
31-383-1-41
3805-01-569-6681INTERCHANGEABLE
LOADER,SCOOP TYPE
S300

Frequently Asked Questions

What is NSN 4820-01-149-7868?

NSN 4820-01-149-7868 is a Disk,valve, manufactured by Apco/valve & Primer Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-149-7868?

NSN 4820-01-149-7868 has 3 cross-referenced part numbers: S-300PNUMBER 3 1 1/2IN (Apco/valve & Primer Corp), 301.1/2-3/51 (Apco/valve & Primer Corp), S-300 (Apco/valve & Primer Corp).

What NSN replaces 4820-01-149-7868?

There are 10 known substitutes for 4820-01-149-7868: 6250-00-023-6868, 5315-00-854-3175, 5331-00-859-6340 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 301.1/2-3/51?

Key specifications for 301.1/2-3/51: Material: COPPER ALLOY; Special Features: SILENT CHECK VALVE, WAFER STYLE, SERIES 300. 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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