PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4640Screw,cap,hexagon Head

Fwd Seagrave Holdings Lp · NSN 5305-00-580-2121 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-580-2121 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-580-2121. Primary manufacturer part number: 4640.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • 1 verified cross-reference
  • Primary manufacturer: Fwd Seagrave Holdings Lp
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-580-2121, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fwd Seagrave Holdings Lp. 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.

Catalog Facts
Item NameScrew,cap,hexagon Head
FSC / FSG5305 — No Item Name Available (FSG 53)
ManufacturersFwd Seagrave Holdings Lp (CAGE 23382)
Technical Specifications
ParameterValue
NSN5305-00-580-2121
Primary Part Number4640
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerFwd Seagrave Holdings Lp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5910-00-162-179819P236422-1 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Herley Chicago Dba Stewart Warner Electronics
5136-00-403-55494640 INTERCHANGEABLE
Die Head and Die,hand
Curtis-Toledo, Inc.
5360-00-664-69854640 INTERCHANGEABLE
Spring,helical,compression
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
5980-01-076-8661 INTERCHANGEABLE
Light Emitting Diode
5340-01-233-12904640 INTERCHANGEABLE
Handle,bow
Mag Aerospace Industries, Llc Div Safran Cabins
4820-01-300-9233209-376-023-101 INTERCHANGEABLE
Valve,balanced,relief
Rogerson Kratos
5120-01-335-8165 INTERCHANGEABLE
Socket,socket Wrench
6520-01-556-3310600-1504 INTERCHANGEABLE
Handpiece,dental
Medidenta International Inc
6520-01-561-43454640 INTERCHANGEABLE
Articulator,dental
Whip-Mix Corp
Cross-Reference Index
Part NumberManufacturer
4640 PRIMARY Fwd Seagrave Holdings Lp (USA)
Related Parts
5910-00-162-1798INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
19P236422-1
5136-00-403-5549INTERCHANGEABLE
DIE HEAD AND DIE,HAND
4640
5360-00-664-6985INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4640
5980-01-076-8661INTERCHANGEABLE
LIGHT EMITTING DIODE
5340-01-233-1290INTERCHANGEABLE
HANDLE,BOW
4640
4820-01-300-9233INTERCHANGEABLE
VALVE,BALANCED,RELIEF
209-376-023-101
5120-01-335-8165INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6520-01-556-3310INTERCHANGEABLE
HANDPIECE,DENTAL
600-1504
6520-01-561-4345INTERCHANGEABLE
ARTICULATOR,DENTAL
4640

Frequently Asked Questions

What is NSN 5305-00-580-2121?

NSN 5305-00-580-2121 is a Screw,cap,hexagon Head, manufactured by Fwd Seagrave Holdings Lp, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-580-2121?

NSN 5305-00-580-2121 has 1 cross-referenced part number: 4640 (Fwd Seagrave Holdings Lp).

What NSN replaces 5305-00-580-2121?

There are 9 known substitutes for 5305-00-580-2121: 5910-00-162-1798, 5136-00-403-5549, 5360-00-664-6985 and 6 more. Verify interchangeability with system specifications before substitution.

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