PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

03457Screw,cap,hexagon Head

Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco · NSN 5305-01-645-1299 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-645-1299 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-645-1299. Primary manufacturer part number: 03457.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Fastener Length: 2.500 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.500 INCHES IN
  • Head Style: HEXAGON
  • 1 verified cross-reference
  • Primary manufacturer: Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-645-1299, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco. Government technical data includes 3 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
NSN5305-01-645-1299
Primary Part Number03457
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerClemco Industries Corp. Dba Clemco Industries Corp Div Clemco
StatusACTIVE
Fastener Length2.500 INCHES NOMINAL IN
Nominal Thread Diameter0.500 INCHES IN
Head StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5950-01-105-19717117320-2 INTERCHANGEABLE
Reactor
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5305-01-273-939703457 INTERCHANGEABLE
Screw,cap,socket Head
Sps Technologies, Llc Dba PB Fasteners
Cross-Reference Index
Part NumberManufacturer
03457 PRIMARY Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco (USA)
Related Parts
5950-01-105-1971INTERCHANGEABLE
REACTOR
7117320-2
5305-01-273-9397INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
03457

Frequently Asked Questions

What is NSN 5305-01-645-1299?

NSN 5305-01-645-1299 is a Screw,cap,hexagon Head, manufactured by Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-645-1299?

NSN 5305-01-645-1299 has 1 cross-referenced part number: 03457 (Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco).

What NSN replaces 5305-01-645-1299?

There are 2 known substitutes for 5305-01-645-1299: 5950-01-105-1971, 5305-01-273-9397. Verify interchangeability with system specifications before substitution.

What are the specifications of 03457?

Key specifications for 03457: Part Name Assigned by Controlling Agency: BOLT; Fastener Length: 2.500 INCHES NOMINAL IN; Nominal Thread Diameter: 0.500 INCHES IN; Head Style: HEXAGON. 4 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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