PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

503221Screw,machine

Clamshell Structures, Inc · NSN 5305-01-552-5694 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-552-5694 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-552-5694. Primary manufacturer part number: 503221.
Features
  • Screw,machine — FSC 5305
  • 1 verified cross-reference
  • Primary manufacturer: Clamshell Structures, Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-01-552-5694, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Clamshell Structures, Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-552-5694
Primary Part Number503221
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerClamshell Structures, Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2910-00-670-2475 INTERCHANGEABLE
Nozzle,ejector,turb
2840-00-690-2090503221 INTERCHANGEABLE
Plate,mounting,case,diffuser
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5962-01-481-921550322-1 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
503221 PRIMARY Clamshell Structures, Inc (USA)
Related Parts
2910-00-670-2475INTERCHANGEABLE
NOZZLE,EJECTOR,TURB
2840-00-690-2090INTERCHANGEABLE
PLATE,MOUNTING,CASE,DIFFUSER
503221
5962-01-481-9215INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
50322-1

Frequently Asked Questions

What is NSN 5305-01-552-5694?

NSN 5305-01-552-5694 is a Screw,machine, manufactured by Clamshell Structures, Inc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-552-5694?

NSN 5305-01-552-5694 has 1 cross-referenced part number: 503221 (Clamshell Structures, Inc).

What NSN replaces 5305-01-552-5694?

There are 3 known substitutes for 5305-01-552-5694: 2910-00-670-2475, 2840-00-690-2090, 5962-01-481-9215. Verify interchangeability with system specifications before substitution.

What are the specifications of 503221?

Key specifications for 503221: Part Name Assigned by Controlling Agency: SCREW. 1 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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