PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

58-11-109-56Thumbscrew

Southco Inc · NSN 5305-00-655-7365 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-655-7365 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-655-7365. Primary manufacturer part number: 58-11-109-56.
Features
  • Thumbscrew — FSC 5305
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Material: COPPER ALLOY OVERALL
  • Surface Treatment: CHROMIUM OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Head Height: 0.250 INCHES NOMINAL IN
  • Thread Class: 2A A
  • Thread Length: 0.375 INCHES MINIMUM IN
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Thumbscrew, cataloged under National Stock Number 5305-00-655-7365, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Southco Inc. Government technical data includes 13 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-655-7365
Primary Part Number58-11-109-56
Item NameThumbscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerSouthco Inc
StatusACTIVE
Nominal Thread Diameter0.250 INCHES IN
MaterialCOPPER ALLOY OVERALL
Surface TreatmentCHROMIUM OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Head Height0.250 INCHES NOMINAL IN
Thread Class2A A
Thread Length0.375 INCHES MINIMUM IN
Head StyleKNURLED NO. 1
Head Diameter0.750 INCHES NOMINAL IN
Fastener Length0.938 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch20
Point StyleFLAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-154-74182926SEAL INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5935-00-171-3004RE49F461TYPEUG335U INTERCHANGEABLE
Adapter,connector
Naval Ship Systems Command
5935-00-402-1636 INTERCHANGEABLE
Connector,receptacle,electrical
5915-00-485-497311081 INTERCHANGEABLE
Filter,low Pass
Stanford Applied Engineering Inc
5975-00-548-89095182782 INTERCHANGEABLE
Chase Nipple,conduit
Rolls-Royce Solutions America Inc
5820-00-606-7677 INTERCHANGEABLE
Radio Set Subassembly
4720-00-699-90087388116 INTERCHANGEABLE
Hose Assembly,metallic
U S Army Tank Automotive Command Amsta-Im-Mm
5325-00-804-9740 INTERCHANGEABLE
Ring,retaining
5950-00-824-0200152708 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon Co
5950-00-959-4380 INTERCHANGEABLE
Transformer,audio Frequency
Cross-Reference Index
Part NumberManufacturer
58-11-109-56 Southco Inc (USA)
11081 Kleinschmidt Inc (USA)
Related Parts
5330-00-154-7418INTERCHANGEABLE
SEAL,PLAIN ENCASED
2926SEAL
5935-00-171-3004INTERCHANGEABLE
ADAPTER,CONNECTOR
RE49F461TYPEUG335U
5935-00-402-1636INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5915-00-485-4973INTERCHANGEABLE
FILTER,LOW PASS
11081
5975-00-548-8909INTERCHANGEABLE
CHASE NIPPLE,CONDUIT
5182782
5820-00-606-7677INTERCHANGEABLE
RADIO SET SUBASSEMBLY
4720-00-699-9008INTERCHANGEABLE
HOSE ASSEMBLY,METALLIC
7388116
5325-00-804-9740INTERCHANGEABLE
RING,RETAINING
5950-00-824-0200INTERCHANGEABLE
TRANSFORMER,POWER
152708
5950-00-959-4380INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
4320-01-195-3101INTERCHANGEABLE
RING,WEARING
209-2292475PC19
2990-01-227-7364INTERCHANGEABLE
MUFFLER,EXHAUST
MAM065044

Frequently Asked Questions

What is NSN 5305-00-655-7365?

NSN 5305-00-655-7365 is a Thumbscrew, manufactured by Southco Inc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-655-7365?

NSN 5305-00-655-7365 has 2 cross-referenced part numbers: 58-11-109-56 (Southco Inc), 11081 (Kleinschmidt Inc).

What NSN replaces 5305-00-655-7365?

There are 12 known substitutes for 5305-00-655-7365: 5330-00-154-7418, 5935-00-171-3004, 5935-00-402-1636 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 58-11-109-56?

Key specifications for 58-11-109-56: Nominal Thread Diameter: 0.250 INCHES IN; Material: COPPER ALLOY OVERALL; Surface Treatment: CHROMIUM OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 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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