PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4-121Washer,lock

Cornwell Nuclear Valve Co · NSN 5310-00-912-0466 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-912-0466 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-912-0466. Primary manufacturer part number: 4-121.
Features
  • Washer,lock — FSC 5310
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • Criticality Code Justification: ZZZY
  • 3 verified cross-references
  • Primary manufacturer: Cornwell Nuclear Valve Co
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-912-0466, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives 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 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.

Technical Specifications
ParameterValue
NSN5310-00-912-0466
Primary Part Number4-121
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCornwell Nuclear Valve Co
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-067-0623412 INTERCHANGEABLE
Connector,plug,electrical
Pauluhn Electric Manufacturing, Llp Dba Pauluhn Electric
5950-00-219-86814121 INTERCHANGEABLE
Transformer,power
Spang & Company Dba Magnetics Division
3120-00-339-3202 INTERCHANGEABLE
Bearing,sleeve
4320-00-353-5584 INTERCHANGEABLE
Impeller,pump,centrifugal
4730-00-478-2634D2446 45 ELBOW NPS 1/2 PVCI INTERCHANGEABLE
Elbow,pipe
American Society for Testing and Materials Dba Astm International
4320-00-542-3189 INTERCHANGEABLE
Ram,hydraulic
3417-00-548-3869 INTERCHANGEABLE
Type,copy
5342-00-689-7215412-1 INTERCHANGEABLE
Plug
Niagara Plastics L.l.c.
4210-00-806-6094 INTERCHANGEABLE
No Item Name Available
6625-00-899-806934605 INTERCHANGEABLE
Meter,special Scale
Cec Vibration Products, Llc Dba Cec Vibrations Products
Cross-Reference Index
Part NumberManufacturer
4-121 Cornwell Nuclear Valve Co
4-121 Curtiss-Wright Flow Control Corporation Dba Curtiss-Wright Flow Control Co Div Target Rock Division (USA)
1369-1/2 PC16 Curtiss-Wright Flow Control Corporation Dba Curtiss-Wright Flow Control Co Div Target Rock Division (USA)
Related Parts
5935-00-067-0623INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
412
5950-00-219-8681INTERCHANGEABLE
TRANSFORMER,POWER
4121
3120-00-339-3202INTERCHANGEABLE
BEARING,SLEEVE
4320-00-353-5584INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
4730-00-478-2634INTERCHANGEABLE
ELBOW,PIPE
D2446 45 ELBOW NPS 1/2 PVCI
4320-00-542-3189INTERCHANGEABLE
RAM,HYDRAULIC
3417-00-548-3869INTERCHANGEABLE
TYPE,COPY
5342-00-689-7215INTERCHANGEABLE
PLUG
412-1
4210-00-806-6094INTERCHANGEABLE
NO ITEM NAME AVAILABLE
6625-00-899-8069INTERCHANGEABLE
METER,SPECIAL SCALE
34605
5330-00-964-2788INTERCHANGEABLE
GASKET
4121
5305-01-054-2012INTERCHANGEABLE
SCREW,MACHINE

Frequently Asked Questions

What is NSN 5310-00-912-0466?

NSN 5310-00-912-0466 is a Washer,lock, manufactured by Cornwell Nuclear Valve Co, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-912-0466?

NSN 5310-00-912-0466 has 3 cross-referenced part numbers: 4-121 (Cornwell Nuclear Valve Co), 4-121 (Curtiss-Wright Flow Control Corporation Dba Curtiss-Wright Flow Control Co Div Target Rock Division), 1369-1/2 PC16 (Curtiss-Wright Flow Control Corporation Dba Curtiss-Wright Flow Control Co Div Target Rock Division).

What NSN replaces 5310-00-912-0466?

There are 12 known substitutes for 5310-00-912-0466: 5935-00-067-0623, 5950-00-219-8681, 3120-00-339-3202 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4-121?

Key specifications for 4-121: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.; Criticality Code Justification: ZZZY. 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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