PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6556Thumbscrew

Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier · NSN 5305-00-850-7036 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-850-7036 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-850-7036. Primary manufacturer part number: 6556.
Features
  • Thumbscrew — FSC 5305
  • Thread Quantity Per Inch: 20
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: OXIDE OR CADMIUM AND CHROMATE OVERALL
  • Material: STEEL COMP 1213 OVERALL
  • Surface Treatment Document and Classification: MIL-C-13924 MIL SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TYPE 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
  • Nominal Thread Diameter: 0.250 INCHES IN
Applications
  • Applications requiring Steel Comp 1213 Overall construction
General Description

The Thumbscrew, cataloged under National Stock Number 5305-00-850-7036, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier. Government technical data includes 18 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-850-7036
Primary Part Number6556
Item NameThumbscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerHutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier
StatusACTIVE
Thread Quantity Per Inch20
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentOXIDE OR CADMIUM AND CHROMATE OVERALL
MaterialSTEEL COMP 1213 OVERALL
Surface Treatment Document and ClassificationMIL-C-13924 MIL SPEC 1ST TREATMENT RESPONSE OR QQ-P-416,TYPE 2,CL 3 FED SPEC 2ND TREATMENT RESPONSE OVERALL
Nominal Thread Diameter0.250 INCHES IN
Thread Class2A A
Point Swivel Included Angle20.0 DEGREES NOMINAL
Point Diameter0.375 INCHES NOMINAL IN
Point Length0.359 INCHES NOMINAL IN
Head Height0.312 INCHES NOMINAL IN
Fastener Length1.594 INCHES NOMINAL IN
Thread Length1.110 INCHES MINIMUM IN
Thread DirectionRIGHT-HAND
Point StyleUNIVERSAL
Head StyleKNURLED NO. 1
Head Diameter1.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4930-00-223-3387 INTERCHANGEABLE
Lubricating Gun,handheld
5905-00-270-1186104540-1 INTERCHANGEABLE
Resistance Element
Marathonnorco Aerospace, Inc. Dba Christie Electric
5306-00-489-4370 INTERCHANGEABLE
Bolt,machine
5950-00-583-090810-20076-7 INTERCHANGEABLE
Transformer,power Autotransforme
The Boeing Company Div Legacy Wichita
3120-00-765-66866556 INTERCHANGEABLE
Bearing,washer,thrust
Sachs-Boge of America
1450-00-797-5410FDC3270-3 INTERCHANGEABLE
Tie Down,guided Mis
Davis Aircraft Products Co., Inc.
5330-01-034-72686556 INTERCHANGEABLE
Seal,plain
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
1005-01-251-9180 INTERCHANGEABLE
Pin,trigger Housing
2940-01-425-95711117576 INTERCHANGEABLE
Filter Element,intake Air Cleane
Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.)
5920-01-465-4611655-6 INTERCHANGEABLE
Fuse,cartridge
Cooper Wiring Devices Inc.
Cross-Reference Index
Part NumberManufacturer
6556 PRIMARY Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier (USA)
CL18SHS PRIMARY Carr Lane Manufacturing Co (USA)
Related Parts
4930-00-223-3387INTERCHANGEABLE
LUBRICATING GUN,HANDHELD
5905-00-270-1186INTERCHANGEABLE
RESISTANCE ELEMENT
104540-1
5306-00-489-4370INTERCHANGEABLE
BOLT,MACHINE
5950-00-583-0908INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
10-20076-7
3120-00-765-6686INTERCHANGEABLE
BEARING,WASHER,THRUST
6556
1450-00-797-5410INTERCHANGEABLE
TIE DOWN,GUIDED MIS
FDC3270-3
5330-01-034-7268INTERCHANGEABLE
SEAL,PLAIN
6556
1005-01-251-9180INTERCHANGEABLE
PIN,TRIGGER HOUSING
2940-01-425-9571INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
1117576
5920-01-465-4611INTERCHANGEABLE
FUSE,CARTRIDGE
655-6
5340-01-497-8743INTERCHANGEABLE
CLIP,SPRING TENSION
135344-1

Frequently Asked Questions

What is NSN 5305-00-850-7036?

NSN 5305-00-850-7036 is a Thumbscrew, manufactured by Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-850-7036?

NSN 5305-00-850-7036 has 2 cross-referenced part numbers: 6556 (Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier), CL18SHS (Carr Lane Manufacturing Co).

What NSN replaces 5305-00-850-7036?

There are 11 known substitutes for 5305-00-850-7036: 4930-00-223-3387, 5905-00-270-1186, 5306-00-489-4370 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6556?

Key specifications for 6556: Thread Quantity Per Inch: 20; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Surface Treatment: OXIDE OR CADMIUM AND CHROMATE OVERALL. 18 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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