PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

321-032Screw,cap,hexagon Head

Malabar · NSN 5305-01-656-5780 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-656-5780 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-656-5780. Primary manufacturer part number: 321-032.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Fastener Length: 2.500 INCHES NOMINAL IN
  • Head Style: HEXAGON
  • Thread Direction: RIGHT-HAND
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Diameter: 0.500 INCHES IN
  • Thread Quantity Per Inch: 13
  • 1 verified cross-reference
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-656-5780, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Malabar. Government technical data includes 6 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-656-5780
Primary Part Number321-032
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMalabar
StatusACTIVE
Fastener Length2.500 INCHES NOMINAL IN
Head StyleHEXAGON
Thread DirectionRIGHT-HAND
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Diameter0.500 INCHES IN
Thread Quantity Per Inch13
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6530-01-153-6467321032 INTERCHANGEABLE
Cover,dust,surgical
Propper Manufacturing Company, Inc. Div Propper Manufacturing Company
5325-01-272-3400 INTERCHANGEABLE
Ring,retaining
Cross-Reference Index
Part NumberManufacturer
321-032 PRIMARY Malabar (USA)
Related Parts
6530-01-153-6467INTERCHANGEABLE
COVER,DUST,SURGICAL
321032
5325-01-272-3400INTERCHANGEABLE
RING,RETAINING

Frequently Asked Questions

What is NSN 5305-01-656-5780?

NSN 5305-01-656-5780 is a Screw,cap,hexagon Head, manufactured by Malabar, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-656-5780?

NSN 5305-01-656-5780 has 1 cross-referenced part number: 321-032 (Malabar).

What NSN replaces 5305-01-656-5780?

There are 2 known substitutes for 5305-01-656-5780: 6530-01-153-6467, 5325-01-272-3400. Verify interchangeability with system specifications before substitution.

What are the specifications of 321-032?

Key specifications for 321-032: Fastener Length: 2.500 INCHES NOMINAL IN; Head Style: HEXAGON; Thread Direction: RIGHT-HAND; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 8 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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