PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

326671Screw,machine

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 5305-00-680-9055 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-680-9055 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-680-9055. Primary manufacturer part number: 326671.
Features
  • Screw,machine — FSC 5305
  • Screw Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE
  • Fastener Length: 0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
  • Thread Class: 3A A
  • Thread Direction: RIGHT-HAND
  • Thread Quantity Per Inch: 80
  • Head Diameter: 0.083 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
  • 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 5305-00-680-9055, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-680-9055
Primary Part Number326671
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusCANCELLED
Screw Material Document and ClassificationAISI ASSN STD SINGLE MATERIAL RESPONSE
Fastener Length0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
Thread Class3A A
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch80
Head Diameter0.083 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN
Internal Drive StyleCROSS RECESS TYPE 1
Head Height0.043 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN
Screw MaterialSTEEL COMP 303
Nominal Thread Diameter0.060 INCHES IN
Head StyleFILLISTER
Thread Length0.063 INCHES MAXIMUM IN
Thread Series DesignatorUNF
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
3455-00-307-9541 INTERCHANGEABLE
File,rotary
Cross-Reference Index
Part NumberManufacturer
326671 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
Related Parts
3455-00-307-9541INTERCHANGEABLE
FILE,ROTARY

Frequently Asked Questions

What is NSN 5305-00-680-9055?

NSN 5305-00-680-9055 is a Screw,machine, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-680-9055?

NSN 5305-00-680-9055 has 1 cross-referenced part number: 326671 (Lockheed Martin Corporation Div Rms - Mitchel Field).

What NSN replaces 5305-00-680-9055?

There is 1 known substitute for 5305-00-680-9055: 3455-00-307-9541. Verify interchangeability with system specifications before substitution.

What are the specifications of 326671?

Key specifications for 326671: Screw Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE; Fastener Length: 0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN; Thread Class: 3A A; Thread Direction: RIGHT-HAND. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-680-9055 still in active supply?

NSN 5305-00-680-9055 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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