PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33-179Screw,machine

Telemechanics Inc · NSN 5305-00-208-8257 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-208-8257 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-208-8257. Primary manufacturer part number: 33-179.
Features
  • Screw,machine — FSC 5305
  • Nominal Thread Diameter: 0.164 INCHES IN
  • Head Diameter: 0.323 INCHES NOMINAL IN
  • Head Style: FILLISTER
  • Fastener Length: 0.375 INCHES NOMINAL IN
  • Screw Surface Treatment: CADMIUM AND CHROMATE
  • Screw Material: STEEL
  • Internal Drive Style: CROSS RECESS TYPE 1
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-208-8257, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Telemechanics Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-208-8257
Primary Part Number33-179
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerTelemechanics Inc
StatusCANCELLED
Nominal Thread Diameter0.164 INCHES IN
Head Diameter0.323 INCHES NOMINAL IN
Head StyleFILLISTER
Fastener Length0.375 INCHES NOMINAL IN
Screw Surface TreatmentCADMIUM AND CHROMATE
Screw MaterialSTEEL
Internal Drive StyleCROSS RECESS TYPE 1
Thread DirectionRIGHT-HAND
Head Height0.091 INCHES NOMINAL IN
Screw Surface Treatment Document and ClassificationQQ-P-416,TY 2 CL 3 FED SPEC ALL TREATMENT RESPONSES
Thread Length0.284 INCHES MINIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch32
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5998-00-006-1787 INTERCHANGEABLE
Circuit Card Assembly
5999-00-177-171757A5A180-3 INTERCHANGEABLE
Clip,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-227-33942X6646A INTERCHANGEABLE
Cone and Rollers,tapered Roller
Napco International Llc Dba Napco International Inc
5340-00-247-4802125002 INTERCHANGEABLE
Clip,spring Tension
Littelfuse, Inc.
5950-00-777-3527876A113 INTERCHANGEABLE
Transformer,audio Frequency
Dyna-Empire Inc
5340-00-845-5112 INTERCHANGEABLE
Clevis,rod End
5865-00-868-1473 INTERCHANGEABLE
Electronic Sub Asse
5920-01-056-4538LPC10261 INTERCHANGEABLE
Arrester,lightning
Lightning Protection Corporation
5340-01-080-4094PLGA1250020 INTERCHANGEABLE
Plug Assembly,sealing
The Lee Co Dba the Lee Co
5120-01-131-8148 INTERCHANGEABLE
Remover,integrated Circuit
Cross-Reference Index
Part NumberManufacturer
125002 Telemechanics Inc (USA)
33-179 American Telephone and Telegraph Co (USA)
125002 American Telephone and Telegraph Co (USA)
33-179 PRIMARY Telemechanics Inc (USA)
Related Parts
5998-00-006-1787INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5999-00-177-1717INTERCHANGEABLE
CLIP,ELECTRICAL
57A5A180-3
3110-00-227-3394INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
2X6646A
5340-00-247-4802INTERCHANGEABLE
CLIP,SPRING TENSION
125002
5950-00-777-3527INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
876A113
5340-00-845-5112INTERCHANGEABLE
CLEVIS,ROD END
5865-00-868-1473INTERCHANGEABLE
ELECTRONIC SUB ASSE
5920-01-056-4538INTERCHANGEABLE
ARRESTER,LIGHTNING
LPC10261
5340-01-080-4094INTERCHANGEABLE
PLUG ASSEMBLY,SEALING
PLGA1250020
5120-01-131-8148INTERCHANGEABLE
REMOVER,INTEGRATED CIRCUIT
3230-01-398-6062INTERCHANGEABLE
BLADE,CIRCULAR SAW,WOODCUTTING
T2009

Frequently Asked Questions

What is NSN 5305-00-208-8257?

NSN 5305-00-208-8257 is a Screw,machine, manufactured by Telemechanics Inc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-208-8257?

NSN 5305-00-208-8257 has 4 cross-referenced part numbers: 125002 (Telemechanics Inc), 33-179 (American Telephone and Telegraph Co), 125002 (American Telephone and Telegraph Co), 33-179 (Telemechanics Inc).

What NSN replaces 5305-00-208-8257?

There are 11 known substitutes for 5305-00-208-8257: 5998-00-006-1787, 5999-00-177-1717, 3110-00-227-3394 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33-179?

Key specifications for 33-179: Nominal Thread Diameter: 0.164 INCHES IN; Head Diameter: 0.323 INCHES NOMINAL IN; Head Style: FILLISTER; Fastener Length: 0.375 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-208-8257 still in active supply?

NSN 5305-00-208-8257 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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