PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45554Nut,plain,round

Northrop Grumman Systems Corporation Div Marine Systems · NSN 5310-00-208-3675 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-208-3675 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-208-3675. Primary manufacturer part number: 45554.
Features
  • Nut,plain,round — FSC 5310
  • Thread Class: 3B
  • Nut Thickness: 0.812 INCHES NOMINAL IN
  • Nominal Thread Size: 6.000 INCHES IN
  • Nut Diameter: 7.750 INCHES NOMINAL IN
  • Drive Point Diameter: 0.500 INCHES NOMINAL IN
  • Nut Style: ROUND
  • Thread Quantity Per Inch: 12
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,round, cataloged under National Stock Number 5310-00-208-3675, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Northrop Grumman Systems Corporation Div Marine Systems. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-208-3675
Primary Part Number45554
Item NameNut,plain,round
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corporation Div Marine Systems
StatusACTIVE
Thread Class3B
Nut Thickness0.812 INCHES NOMINAL IN
Nominal Thread Size6.000 INCHES IN
Nut Diameter7.750 INCHES NOMINAL IN
Drive Point Diameter0.500 INCHES NOMINAL IN
Nut StyleROUND
Thread Quantity Per Inch12
Drive Point Quantity2
Thread DirectionRIGHT-HAND
Thread SeriesUN
MaterialSTEEL OVERALL
Material Document and ClassificationMIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3455-00-015-842359-10018 INTERCHANGEABLE
Cutter,milling,metal Slitting
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
5935-00-165-33854-55-54 INTERCHANGEABLE
Connector,receptacle,electrical
Ted Manufacturing Corp Div Ted Manufacturing Corporation
5310-00-618-210845554 INTERCHANGEABLE
Washer,flat
Triumph Engine Control Systems Llc
6625-01-287-32284555-4 INTERCHANGEABLE
Probe,test
Fluke Electronics Corp
Cross-Reference Index
Part NumberManufacturer
45554 PRIMARY Northrop Grumman Systems Corporation Div Marine Systems (USA)
45554 Westinghouse Electric Corp Sturtevant Div (USA)
45554 Westinghouse Electric Corp (USA)
Related Parts
3455-00-015-8423INTERCHANGEABLE
CUTTER,MILLING,METAL SLITTING
59-10018
5935-00-165-3385INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
4-55-54
5310-00-618-2108INTERCHANGEABLE
WASHER,FLAT
45554
6625-01-287-3228INTERCHANGEABLE
PROBE,TEST
4555-4

Frequently Asked Questions

What is NSN 5310-00-208-3675?

NSN 5310-00-208-3675 is a Nut,plain,round, manufactured by Northrop Grumman Systems Corporation Div Marine Systems, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-208-3675?

NSN 5310-00-208-3675 has 3 cross-referenced part numbers: 45554 (Northrop Grumman Systems Corporation Div Marine Systems), 45554 (Westinghouse Electric Corp Sturtevant Div), 45554 (Westinghouse Electric Corp).

What NSN replaces 5310-00-208-3675?

There are 4 known substitutes for 5310-00-208-3675: 3455-00-015-8423, 5935-00-165-3385, 5310-00-618-2108 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45554?

Key specifications for 45554: Thread Class: 3B; Nut Thickness: 0.812 INCHES NOMINAL IN; Nominal Thread Size: 6.000 INCHES IN; Nut Diameter: 7.750 INCHES NOMINAL IN. 13 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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