PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6118-SS-2528-7Screw,externally Relieved Body

Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware · NSN 5305-01-025-4789 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-025-4789 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-025-4789. Primary manufacturer part number: 6118-SS-2528-7.
Features
  • Screw,externally Relieved Body — FSC 5305
  • Material: STEEL COMP 303 OVERALL
  • Surface Treatment: PASSIVATE OVERALL
  • Thread Series Designator: UNF
  • Material Document and Classification: ASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Thread Length: 0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
  • Thread Class: 2A A
  • Internal Drive Style: SLOT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Screw,externally Relieved Body, cataloged under National Stock Number 5305-01-025-4789, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-025-4789
Primary Part Number6118-SS-2528-7
Item NameScrew,externally Relieved Body
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerCarey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
StatusACTIVE
MaterialSTEEL COMP 303 OVERALL
Surface TreatmentPASSIVATE OVERALL
Thread Series DesignatorUNF
Material Document and ClassificationASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Length0.303 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN
Thread Class2A A
Internal Drive StyleSLOT
Fastener Length1.750 INCHES NOMINAL IN
Surface Treatment Document and ClassificationMIL-F-14072,FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Head Height0.546 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
First Diameter From Head0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch28
Distance From Largest Bearing Surface of Head to End of First Diameter1.249 INCHES MINIMUM AND 1.259 INCHES MAXIMUM IN
Head Diameter0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN
Nominal Thread Diameter0.250 INCHES IN
Head StyleKNURLED NO. 4
Externally Relieved Body Diameter Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5945-00-233-5663951274-1 INTERCHANGEABLE
Relay,electromagnetic
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
6118-SS-2528-7 New Haven Mfg Corp Amatom Electronic Hardware Div (USA)
6118-SS-2528-7 PRIMARY Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware (USA)
951274-1 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
5945-00-233-5663INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
951274-1

Frequently Asked Questions

What is NSN 5305-01-025-4789?

NSN 5305-01-025-4789 is a Screw,externally Relieved Body, manufactured by Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-025-4789?

NSN 5305-01-025-4789 has 3 cross-referenced part numbers: 6118-SS-2528-7 (New Haven Mfg Corp Amatom Electronic Hardware Div), 6118-SS-2528-7 (Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware), 951274-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 5305-01-025-4789?

There is 1 known substitute for 5305-01-025-4789: 5945-00-233-5663. Verify interchangeability with system specifications before substitution.

What are the specifications of 6118-SS-2528-7?

Key specifications for 6118-SS-2528-7: Material: STEEL COMP 303 OVERALL; Surface Treatment: PASSIVATE OVERALL; Thread Series Designator: UNF; Material Document and Classification: ASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 18 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