PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40-111Insert,valve Disc

Cornwell Nuclear Valve Co · NSN 4820-01-029-2983 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-029-2983 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-029-2983. Primary manufacturer part number: 40-111.
Features
  • Insert,valve Disc — FSC 4820
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
  • 1 verified cross-reference
  • Primary manufacturer: Cornwell Nuclear Valve Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Insert,valve Disc, cataloged under National Stock Number 4820-01-029-2983, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Cornwell Nuclear Valve Co. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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
NSN4820-01-029-2983
Primary Part Number40-111
Item NameInsert,valve Disc
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCornwell Nuclear Valve Co
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5841-00-342-2329 INTERCHANGEABLE
Servo Indicator Ass
5130-00-487-141540111 INTERCHANGEABLE
Blade,reciprocating Saw
Black and Decker Us Inc
1660-00-612-363940111 INTERCHANGEABLE
Repair Kit,valve,ov
Meggitt North Hollywood Inc
5331-00-819-8567401111 INTERCHANGEABLE
O-Ring
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
1680-01-057-3391 INTERCHANGEABLE
Receptacle Assembly,flight Refue
6105-01-309-663840111 INTERCHANGEABLE
Armature,motor
Bell Intl Inc
8145-01-444-42174011-1 INTERCHANGEABLE
Shipping and Storage Container,e
Bae Systems Container Solutions Inc
5120-01-473-9686 INTERCHANGEABLE
Bar,pry
6210-01-681-196440111 INTERCHANGEABLE
Lens,light
Energy Focus, Inc. Div Mmm
Cross-Reference Index
Part NumberManufacturer
40-111 Cornwell Nuclear Valve Co
Related Parts
5841-00-342-2329INTERCHANGEABLE
SERVO INDICATOR ASS
5130-00-487-1415INTERCHANGEABLE
BLADE,RECIPROCATING SAW
40111
1660-00-612-3639INTERCHANGEABLE
REPAIR KIT,VALVE,OV
40111
5331-00-819-8567INTERCHANGEABLE
O-RING
401111
1680-01-057-3391INTERCHANGEABLE
RECEPTACLE ASSEMBLY,FLIGHT REFUE
6105-01-309-6638INTERCHANGEABLE
ARMATURE,MOTOR
40111
8145-01-444-4217INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,E
4011-1
5120-01-473-9686INTERCHANGEABLE
BAR,PRY
6210-01-681-1964INTERCHANGEABLE
LENS,LIGHT
40111

Frequently Asked Questions

What is NSN 4820-01-029-2983?

NSN 4820-01-029-2983 is a Insert,valve Disc, manufactured by Cornwell Nuclear Valve Co, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-029-2983?

NSN 4820-01-029-2983 has 1 cross-referenced part number: 40-111 (Cornwell Nuclear Valve Co).

What NSN replaces 4820-01-029-2983?

There are 9 known substitutes for 4820-01-029-2983: 5841-00-342-2329, 5130-00-487-1415, 1660-00-612-3639 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40-111?

Key specifications for 40-111: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330. 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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