PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

18280Disk,valve

Circor Aerospace, Inc. Dba Circor Aerospace Inc · NSN 4820-01-012-6968 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-012-6968 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-012-6968. Primary manufacturer part number: 18280.
Features
  • Disk,valve — FSC 4820
  • Thread Class: 3A A
  • Material: NICKEL ALLOY
  • Thread Series Designator: UNEF
  • Nominal Thread Size: 1.000 INCHES IN
  • Outside Diameter: 1.732 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: Circor Aerospace, Inc. Dba Circor Aerospace Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Nickel Alloy construction
General Description

The Disk,valve, cataloged under National Stock Number 4820-01-012-6968, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. Government technical data includes 5 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-012-6968
Primary Part Number18280
Item NameDisk,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCircor Aerospace, Inc. Dba Circor Aerospace Inc
StatusACTIVE
Thread Class3A A
MaterialNICKEL ALLOY
Thread Series DesignatorUNEF
Nominal Thread Size1.000 INCHES IN
Outside Diameter1.732 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4330-00-097-423099118280 INTERCHANGEABLE
Glass,gage
Alfa Laval Inc
3110-00-100-23649103L-1B1 INTERCHANGEABLE
Bearing,ball,annular
Schatz Bearing Corporation Dba Schatz Bearing Corp
4320-00-126-523910344 INTERCHANGEABLE
Ringx Antern
Rps-Fl, Inc. Dba Rps Inc
4730-00-541-3168MS21908W8 INTERCHANGEABLE
Elbow,tube
Sae International Dba Sae International
6145-01-070-71765303C INTERCHANGEABLE
Cable,special Purpose,electrical
Belden, Inc.
5950-01-105-0598 INTERCHANGEABLE
Transformer,power
5950-01-154-09693479920-6 INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
5331-01-318-190418280 INTERCHANGEABLE
O-Ring
Imi Cash Valve Inc
4730-01-343-5446MS21912K12 INTERCHANGEABLE
Tee,tube
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
P39-433M PIECE 12 Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
P39-433M PIECE Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
18280 PRIMARY Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
Related Parts
4330-00-097-4230INTERCHANGEABLE
GLASS,GAGE
99118280
3110-00-100-2364INTERCHANGEABLE
BEARING,BALL,ANNULAR
9103L-1B1
4320-00-126-5239INTERCHANGEABLE
RINGX ANTERN
10344
4730-00-541-3168INTERCHANGEABLE
ELBOW,TUBE
MS21908W8
6145-01-070-7176INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
5303C
5950-01-105-0598INTERCHANGEABLE
TRANSFORMER,POWER
5950-01-154-0969INTERCHANGEABLE
COIL,RADIO FREQUENCY
3479920-6
5331-01-318-1904INTERCHANGEABLE
O-RING
18280
4730-01-343-5446INTERCHANGEABLE
TEE,TUBE
MS21912K12

Frequently Asked Questions

What is NSN 4820-01-012-6968?

NSN 4820-01-012-6968 is a Disk,valve, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-012-6968?

NSN 4820-01-012-6968 has 3 cross-referenced part numbers: P39-433M PIECE 12 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), P39-433M PIECE (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 18280 (Circor Aerospace, Inc. Dba Circor Aerospace Inc).

What NSN replaces 4820-01-012-6968?

There are 9 known substitutes for 4820-01-012-6968: 4330-00-097-4230, 3110-00-100-2364, 4320-00-126-5239 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 18280?

Key specifications for 18280: Thread Class: 3A A; Material: NICKEL ALLOY; Thread Series Designator: UNEF; Nominal Thread Size: 1.000 INCHES IN. 6 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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