PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

C2300-0045Screw,shoulder

Circor Aerospace, Inc. Dba Circor Aerospace Inc · NSN 5305-00-802-8988 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-802-8988 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-802-8988. Primary manufacturer part number: C2300-0045.
Features
  • Screw,shoulder — FSC 5305
  • Shoulder Diameter: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM FIRST SHOULDER IN
  • Material: COPPER ALLOY OVERALL
  • Internal Drive Style: HEXAGON
  • Width Across Flats: 0.250 INCHES NOMINAL IN
  • Head Diameter: 0.625 INCHES NOMINAL IN
  • Thread Length: 0.312 INCHES MINIMUM IN
  • Head Style: PAN NO. 2
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Screw,shoulder, cataloged under National Stock Number 5305-00-802-8988, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Circor Aerospace, Inc. Dba Circor Aerospace Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN5305-00-802-8988
Primary Part NumberC2300-0045
Item NameScrew,shoulder
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerCircor Aerospace, Inc. Dba Circor Aerospace Inc
StatusACTIVE
Shoulder Diameter0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM FIRST SHOULDER IN
MaterialCOPPER ALLOY OVERALL
Internal Drive StyleHEXAGON
Width Across Flats0.250 INCHES NOMINAL IN
Head Diameter0.625 INCHES NOMINAL IN
Thread Length0.312 INCHES MINIMUM IN
Head StylePAN NO. 2
Shoulder ShapeROUND FIRST SHOULDER
Thread DirectionRIGHT-HAND
Fastener Length0.500 INCHES NOMINAL IN
Head Height0.094 INCHES NOMINAL IN
Thread Class2A A
Thread Quantity Per Inch24
Shoulder Length0.125 INCHES NOMINAL FIRST SHOULDER IN
Nominal Thread Diameter0.312 INCHES IN
Thread Series DesignatorUNF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-273-8561 INTERCHANGEABLE
Adapter,straight,pipe to Tube
4730-00-278-4574SAE J512 6-4 060102BA INTERCHANGEABLE
Adapter,straight,pipe to Tube
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
C2300-0045 PRIMARY Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
1402-86 Circor Aerospace, Inc. Dba Circor Aerospace Inc (USA)
1402-86 Victor Equipment Co (USA)
Related Parts
4730-00-273-8561INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
4730-00-278-4574INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
SAE J512 6-4 060102BA

Frequently Asked Questions

What is NSN 5305-00-802-8988?

NSN 5305-00-802-8988 is a Screw,shoulder, manufactured by Circor Aerospace, Inc. Dba Circor Aerospace Inc, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-802-8988?

NSN 5305-00-802-8988 has 3 cross-referenced part numbers: C2300-0045 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 1402-86 (Circor Aerospace, Inc. Dba Circor Aerospace Inc), 1402-86 (Victor Equipment Co).

What NSN replaces 5305-00-802-8988?

There are 2 known substitutes for 5305-00-802-8988: 4730-00-273-8561, 4730-00-278-4574. Verify interchangeability with system specifications before substitution.

What are the specifications of C2300-0045?

Key specifications for C2300-0045: Shoulder Diameter: 0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM FIRST SHOULDER IN; Material: COPPER ALLOY OVERALL; Internal Drive Style: HEXAGON; Width Across Flats: 0.250 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com