PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

820-4384426PC9Stud,handhole

Naval Ship Systems Command · NSN 4470-00-995-0681 · FSC 4470 · No Item Name Available
Verified by PartsTable
NSN 4470-00-995-0681 — this item is cataloged by the U.S. Government under National Stock Number 4470-00-995-0681. Primary manufacturer part number: 820-4384426PC9.
Features
  • Stud,handhole — FSC 4470
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • Criticality Code Justification: ZZZY
  • 25 verified cross-references
  • Primary manufacturer: Naval Ship Systems Command
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Stud,handhole, cataloged under National Stock Number 4470-00-995-0681, is classified within Federal Supply Class 4470 (No Item Name Available) of the Furnace, Steam, Drying, Nuclear Reactors group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 25 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4470-00-995-0681
Primary Part Number820-4384426PC9
Item NameStud,handhole
FSC / FSG4470 / 44 — No Item Name Available
ManufacturerNaval Ship Systems Command
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 5
4470-00-201-4664 INTERCHANGEABLE
Stud,pressurizer
4820-00-274-6378 INTERCHANGEABLE
Stud,special
4470-00-995-0693 INTERCHANGEABLE
Diaphragm
4470-01-057-5117 INTERCHANGEABLE
Stud,pressurizer
5307-01-679-8173 INTERCHANGEABLE
Stud,plain
Cross-Reference Index
Part NumberManufacturer
820-4384426PC9 Naval Ship Systems Command (USA)
24980FMK-114 Babcock & Wilcox Companies, the Div Sales & Service (USA)
2644PC96 Babcock & Wilcox Co (USA)
910D979PC9 Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh (USA)
457B705PC1 Fluor Marine Propulsion, Llc (USA)
NF42242PC96 Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA)
910D979PC9 Babcock & Wilcox Companies, the Div Sales & Service (USA)
RA3230 Fluor Marine Propulsion, Llc (USA)
NF42242PC96 Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA)
24980F PC114 Babcock & Wilcox Companies, the Div Sales & Service (USA)
FOSTER WHEELER NF-42242 M Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA)
NF42242PC96 Fairbanks Morse, Llc (USA)
NF-42242PC8103 Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA)
27878FMK-111 Babcock & Wilcox Companies, the Div Sales & Service (USA)
NF-42637IT571 Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA)
28559FPC96 Babcock & Wilcox Companies, the Div Sales & Service (USA)
E232-681PC685-17 Combustion Engineering Inc Chattanooga Works (USA)
29272FPC118 Babcock & Wilcox Companies, the Div Sales & Service (USA)
E231-924PC924-17 Combustion Engineering Inc Chattanooga Works (USA)
18530FPC81 Babcock & Wilcox Co (USA)
Related Parts
4470-00-201-4664INTERCHANGEABLE
STUD,PRESSURIZER
4820-00-274-6378INTERCHANGEABLE
STUD,SPECIAL
4470-00-995-0693INTERCHANGEABLE
DIAPHRAGM
4470-01-057-5117INTERCHANGEABLE
STUD,PRESSURIZER
5307-01-679-8173INTERCHANGEABLE
STUD,PLAIN

Frequently Asked Questions

What is NSN 4470-00-995-0681?

NSN 4470-00-995-0681 is a Stud,handhole, manufactured by Naval Ship Systems Command, classified under FSC 4470 (No Item Name Available). Status: active.

What are the part numbers for NSN 4470-00-995-0681?

NSN 4470-00-995-0681 has 25 cross-referenced part numbers: 820-4384426PC9 (Naval Ship Systems Command), 24980FMK-114 (Babcock & Wilcox Companies, the Div Sales & Service), 2644PC96 (Babcock & Wilcox Co), 910D979PC9 (Cbs Broadcasting Inc. Dba Cbs Div Bechtel Plant Machinery Inc. - Pittsburgh), 457B705PC1 (Fluor Marine Propulsion, Llc) and 20 more.

What NSN replaces 4470-00-995-0681?

There are 5 known substitutes for 4470-00-995-0681: 4470-00-201-4664, 4820-00-274-6378, 4470-00-995-0693 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 820-4384426PC9?

Key specifications for 820-4384426PC9: 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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