PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

104121Screw,cap,socket Head

Teledyne Camera Systems Teledyne Inc Company · NSN 5305-00-688-6994 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-688-6994 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-688-6994. Primary manufacturer part number: 104121.
Features
  • Screw,cap,socket Head — FSC 5305
  • Thread Length: 0.219 INCHES MAXIMUM IN
  • Internal Drive Style: HEXAGON
  • Head Diameter: 0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
  • Fastener Length: 0.219 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • Head Style: FLAT CHAMFER
  • Head Height: 0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-688-6994, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Teledyne Camera Systems Teledyne Inc Company. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-688-6994
Primary Part Number104121
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerTeledyne Camera Systems Teledyne Inc Company
StatusACTIVE
Thread Length0.219 INCHES MAXIMUM IN
Internal Drive StyleHEXAGON
Head Diameter0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
Fastener Length0.219 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING OVERALL
Head StyleFLAT CHAMFER
Head Height0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
Width Across Flats0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch32
Nominal Thread Diameter0.138 INCHES IN
Thread Class2A A
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
2925-00-328-2073 INTERCHANGEABLE
Shield,spark Plug
5310-00-438-7434104121 INTERCHANGEABLE
Washer,flat
Hydro-Aire Aerospace Corp
3120-00-661-748491611907 INTERCHANGEABLE
Bearing,plain,rod End
Fairbanks Morse, Llc
5995-01-279-3015104121 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Aimtron Systems, Llc
6130-01-295-39021041-21 INTERCHANGEABLE
Power Supply
Rotron Incorporated
2520-01-563-133810-4-121 INTERCHANGEABLE
Yoke,universal Joint,vehicular
Dana Commercial Vehicle Manufacturing, Llc Dba Dana Commercial Vehicle Products
Cross-Reference Index
Part NumberManufacturer
104121 Teledyne Camera Systems Teledyne Inc Company (USA)
Related Parts
2925-00-328-2073INTERCHANGEABLE
SHIELD,SPARK PLUG
5310-00-438-7434INTERCHANGEABLE
WASHER,FLAT
104121
3120-00-661-7484INTERCHANGEABLE
BEARING,PLAIN,ROD END
91611907
5995-01-279-3015INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
104121
6130-01-295-3902INTERCHANGEABLE
POWER SUPPLY
1041-21
2520-01-563-1338INTERCHANGEABLE
YOKE,UNIVERSAL JOINT,VEHICULAR
10-4-121

Frequently Asked Questions

What is NSN 5305-00-688-6994?

NSN 5305-00-688-6994 is a Screw,cap,socket Head, manufactured by Teledyne Camera Systems Teledyne Inc Company, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-688-6994?

NSN 5305-00-688-6994 has 1 cross-referenced part number: 104121 (Teledyne Camera Systems Teledyne Inc Company).

What NSN replaces 5305-00-688-6994?

There are 6 known substitutes for 5305-00-688-6994: 2925-00-328-2073, 5310-00-438-7434, 3120-00-661-7484 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 104121?

Key specifications for 104121: Thread Length: 0.219 INCHES MAXIMUM IN; Internal Drive Style: HEXAGON; Head Diameter: 0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN; Fastener Length: 0.219 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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