PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3006638Screw,cap,hexagon Head

General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp · NSN 5305-01-568-1613 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-568-1613 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-568-1613. Primary manufacturer part number: 3006638.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Head Style: HEXAGON
  • Minimum Tensile Strength: 150000 POUNDS PER SQUARE INCH LBS
  • Material: STEEL OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Thread Direction: RIGHT-HAND
  • Thread Quantity Per Inch: 20
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-568-1613, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-568-1613
Primary Part Number3006638
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerGeneral Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp
StatusACTIVE
Head StyleHEXAGON
Minimum Tensile Strength150000 POUNDS PER SQUARE INCH LBS
MaterialSTEEL OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Diameter0.250 INCHES IN
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch20
Fastener Length1.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
3010-00-203-1635 INTERCHANGEABLE
Coupling,shaft,flexible
2920-01-038-1477FG7660B INTERCHANGEABLE
Contact Set,distributor
Phelon R E Co Inc
2540-01-127-694737304 INTERCHANGEABLE
Latch,pintle Hook
Jergens Inc Div Tooling Components Division
1730-01-147-49913-9004 INTERCHANGEABLE
Piston Assembly
Malabar
5930-01-311-545739004 INTERCHANGEABLE
Switch Subassembly
Traco Tidewater Inc
5325-01-642-874615324983 INTERCHANGEABLE
Grommet,nonmetallic
Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service
9150-01-707-401439004 INTERCHANGEABLE
Lubricating Oil,utility
Wd-40 Company
Cross-Reference Index
Part NumberManufacturer
3006638 PRIMARY General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp (USA)
39004 Barnes Group Inc. Dba Barnes Distribution (USA)
Related Parts
3010-00-203-1635INTERCHANGEABLE
COUPLING,SHAFT,FLEXIBLE
2920-01-038-1477INTERCHANGEABLE
CONTACT SET,DISTRIBUTOR
FG7660B
2540-01-127-6947INTERCHANGEABLE
LATCH,PINTLE HOOK
37304
1730-01-147-4991INTERCHANGEABLE
PISTON ASSEMBLY
3-9004
5930-01-311-5457INTERCHANGEABLE
SWITCH SUBASSEMBLY
39004
5325-01-642-8746INTERCHANGEABLE
GROMMET,NONMETALLIC
15324983
9150-01-707-4014INTERCHANGEABLE
LUBRICATING OIL,UTILITY
39004

Frequently Asked Questions

What is NSN 5305-01-568-1613?

NSN 5305-01-568-1613 is a Screw,cap,hexagon Head, manufactured by General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-568-1613?

NSN 5305-01-568-1613 has 2 cross-referenced part numbers: 3006638 (General Dynamics Land Systems - Force Protection Inc. Dba Gdls Div Gdls-Fp), 39004 (Barnes Group Inc. Dba Barnes Distribution).

What NSN replaces 5305-01-568-1613?

There are 7 known substitutes for 5305-01-568-1613: 3010-00-203-1635, 2920-01-038-1477, 2540-01-127-6947 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3006638?

Key specifications for 3006638: Head Style: HEXAGON; Minimum Tensile Strength: 150000 POUNDS PER SQUARE INCH LBS; Material: STEEL OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 9 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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