PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-321Screw,socket-Clamp

Hartzell Propeller Llc · NSN 5305-01-499-6878 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-499-6878 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-499-6878. Primary manufacturer part number: A-321.
Features
  • Screw,socket-Clamp — FSC 5305
  • Thread Size and Series/type Designator: 3/8-24 UNF
  • 1 verified cross-reference
  • Primary manufacturer: Hartzell Propeller Llc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,socket-Clamp, cataloged under National Stock Number 5305-01-499-6878, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hartzell Propeller Llc. Government technical data includes 1 verified specification, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-499-6878
Primary Part NumberA-321
Item NameScrew,socket-Clamp
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerHartzell Propeller Llc
StatusACTIVE
Thread Size and Series/type Designator3/8-24 UNF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6110-00-129-8698A321 INTERCHANGEABLE
Panel,power Distribution
Lockheed Martin Corp
5342-00-200-41148177310 INTERCHANGEABLE
Mount,resilient,weapon System
Us Army Aviation and Missile Command
6130-00-635-8505 INTERCHANGEABLE
Rectifier,metallic
2520-00-734-9414A321 INTERCHANGEABLE
Yoke Release Bearin
Eaton Corp Transmission Div
6240-00-777-4263A321 INTERCHANGEABLE
Lamp,glow
Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron
3040-00-980-0727 INTERCHANGEABLE
Shaft,straight
9390-01-037-4571 INTERCHANGEABLE
Tape,reflective
5915-01-072-6683SCI-1021-000 INTERCHANGEABLE
Filter,radio Frequency Interfere
Spectrum Control, Inc.
Cross-Reference Index
Part NumberManufacturer
A-321 PRIMARY Hartzell Propeller Llc (USA)
Related Parts
6110-00-129-8698INTERCHANGEABLE
PANEL,POWER DISTRIBUTION
A321
5342-00-200-4114INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
8177310
6130-00-635-8505INTERCHANGEABLE
RECTIFIER,METALLIC
2520-00-734-9414INTERCHANGEABLE
YOKE RELEASE BEARIN
A321
6240-00-777-4263INTERCHANGEABLE
LAMP,GLOW
A321
3040-00-980-0727INTERCHANGEABLE
SHAFT,STRAIGHT
9390-01-037-4571INTERCHANGEABLE
TAPE,REFLECTIVE
5915-01-072-6683INTERCHANGEABLE
FILTER,RADIO FREQUENCY INTERFERE
SCI-1021-000

Frequently Asked Questions

What is NSN 5305-01-499-6878?

NSN 5305-01-499-6878 is a Screw,socket-Clamp, manufactured by Hartzell Propeller Llc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-499-6878?

NSN 5305-01-499-6878 has 1 cross-referenced part number: A-321 (Hartzell Propeller Llc).

What NSN replaces 5305-01-499-6878?

There are 8 known substitutes for 5305-01-499-6878: 6110-00-129-8698, 5342-00-200-4114, 6130-00-635-8505 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-321?

Key specifications for A-321: Thread Size and Series/type Designator: 3/8-24 UNF; Special Features: 3/8-24; DOUBLE 60 DEG HEAD. 2 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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