PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

709-8500409 ITEM 13Screw,cap,hexagon Head

Naval Sea Systems Command · NSN 5305-01-649-9809 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-649-9809 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-649-9809. Primary manufacturer part number: 709-8500409 ITEM 13.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • 4 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-649-9809, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. This item has 4 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.

Catalog Facts
Item NameScrew,cap,hexagon Head
FSC / FSG5305 — No Item Name Available (FSG 53)
ManufacturersNaval Sea Systems Command (CAGE 53711); Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349)
Technical Specifications
ParameterValue
NSN5305-01-649-9809
Primary Part Number709-8500409 ITEM 13
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-01-649-6355709-8500408 ITEM 41-2 INTERCHANGEABLE
Screw,cap,hexagon Head
Naval Sea Systems Command
5310-01-649-6379709-8500409 ITEM 1-11 INTERCHANGEABLE
Washer,flat
Naval Sea Systems Command
5310-01-649-6386709-8500409 ITEM 1-16 INTERCHANGEABLE
Washer,flat
Naval Sea Systems Command
5305-01-649-6420709-8500409 ITEM 34-2E INTERCHANGEABLE
Screw,cap,socket Head
Naval Sea Systems Command
5310-01-649-8085709-8500409 ITEM 41-3 INTERCHANGEABLE
Washer,flat
Naval Sea Systems Command
5310-01-649-8155709-8500409 ITEM 29-3 INTERCHANGEABLE
Washer,flat
Naval Sea Systems Command
5310-01-649-8198709-8500409 ITEM 40-2 INTERCHANGEABLE
Washer,flat
Naval Sea Systems Command
5310-01-649-9015709-8500409 ITEM 1-9 INTERCHANGEABLE
Nut,plain,hexagon
Naval Sea Systems Command
5305-01-649-9088709-8500409 ITEM 35-2 INTERCHANGEABLE
Screw,cap,hexagon Head
Naval Sea Systems Command
5305-01-649-9792709-8500409 ITEM 1-10 INTERCHANGEABLE
Screw,cap,hexagon Head
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
0.375-16UNC-2AX1.50 NICU Naval Sea Systems Command (USA)
709-8500409 Naval Sea Systems Command (USA)
MIL-DTL-1222 TYPE 1 GR 400 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
709-8500409 ITEM 13 PRIMARY Naval Sea Systems Command (USA)
Related Parts
5305-01-649-6355INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
709-8500408 ITEM 41-2
5310-01-649-6379INTERCHANGEABLE
WASHER,FLAT
709-8500409 ITEM 1-11
5310-01-649-6386INTERCHANGEABLE
WASHER,FLAT
709-8500409 ITEM 1-16
5305-01-649-6420INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
709-8500409 ITEM 34-2E
5310-01-649-8085INTERCHANGEABLE
WASHER,FLAT
709-8500409 ITEM 41-3
5310-01-649-8155INTERCHANGEABLE
WASHER,FLAT
709-8500409 ITEM 29-3
5310-01-649-8198INTERCHANGEABLE
WASHER,FLAT
709-8500409 ITEM 40-2
5310-01-649-9015INTERCHANGEABLE
NUT,PLAIN,HEXAGON
709-8500409 ITEM 1-9
5305-01-649-9088INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
709-8500409 ITEM 35-2
5305-01-649-9792INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
709-8500409 ITEM 1-10
5305-01-649-9827INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
709-8500409 ITEM 41-7
5305-01-650-0964INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
709-8500409 ITEM 34-3F

Frequently Asked Questions

What is NSN 5305-01-649-9809?

NSN 5305-01-649-9809 is a Screw,cap,hexagon Head, manufactured by Naval Sea Systems Command, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-649-9809?

NSN 5305-01-649-9809 has 4 cross-referenced part numbers: 0.375-16UNC-2AX1.50 NICU (Naval Sea Systems Command), 709-8500409 (Naval Sea Systems Command), MIL-DTL-1222 TYPE 1 GR 400 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 709-8500409 ITEM 13 (Naval Sea Systems Command).

What NSN replaces 5305-01-649-9809?

There are 12 known substitutes for 5305-01-649-9809: 5305-01-649-6355, 5310-01-649-6379, 5310-01-649-6386 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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