PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

448-SS-20Screw,externally Relieved Body

Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc · NSN 5305-00-715-1311 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-715-1311 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-715-1311. Primary manufacturer part number: 448-SS-20.
Features
  • Screw,externally Relieved Body — FSC 5305
  • Surface Treatment: PASSIVATE OVERALL
  • Thread Class: 2A A
  • Thread Series Designator: UNF
  • First Diameter From Head: 0.130 INCHES NOMINAL IN
  • Nominal Thread Diameter: 0.190 INCHES IN
  • Head Height: 0.483 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 32
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-715-1311, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-715-1311
Primary Part Number448-SS-20
Item NameScrew,externally Relieved Body
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerMatthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc
StatusCANCELLED
Surface TreatmentPASSIVATE OVERALL
Thread Class2A A
Thread Series DesignatorUNF
First Diameter From Head0.130 INCHES NOMINAL IN
Nominal Thread Diameter0.190 INCHES IN
Head Height0.483 INCHES NOMINAL IN
Thread Quantity Per Inch32
Head StyleKNURLED NO. 4
Head Diameter0.375 INCHES NOMINAL IN
Fastener Length0.830 INCHES NOMINAL IN
Distance From Largest Bearing Surface of Head to End of First Diameter0.424 INCHES NOMINAL IN
Thread Length0.250 INCHES MINIMUM IN
Thread DirectionRIGHT-HAND
Internal Drive StyleSLOT
MaterialSTEEL CORROSION RESISTING OVERALL
Externally Relieved Body Diameter Quantity1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
7420-00-134-3700CS121 INTERCHANGEABLE
Calculator,electronic
Sharp Electronics Corp Div Government Sales
5133-00-233-6415 INTERCHANGEABLE
Drill,twist
Cross-Reference Index
Part NumberManufacturer
CS121 Raytheon Company (USA)
6108SS1032-7 New Haven Mfg Corp Amatom Electronic Hardware Div (USA)
209-1032P45 Raytheon Co Equipment Development Lab (USA)
CS121 Raytheon Company Div Corp (USA)
6108SS1032-7 Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware (USA)
950066-7 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
6108-SS-1032 Zf Industrieantriebe Witten Gmbh (DEU)
088-35 Alliant Techsystems Operations Llc Div Defense Electronic Systems (USA)
6108SS1032 Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware (USA)
448-SS-20 PRIMARY Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc (USA)
2010022-0702 PRIMARY Raytheon Company Div Corp (USA)
6108-SS-1032-7 Zf Industrieantriebe Witten Gmbh (DEU)
1032P45 Raytheon Co Equipment Development Lab (USA)
2010022-0702 Raytheon Company Dba Raytheon Co (USA)
209-1032P45 Raytheon Company Div Corp (USA)
CS121 Raytheon Company Dba Raytheon Co (USA)
209-1032P45 Raytheon Co Raytheon Systems Co (USA)
6108SS1032 New Haven Mfg Corp Amatom Electronic Hardware Div (USA)
Related Parts
7420-00-134-3700INTERCHANGEABLE
CALCULATOR,ELECTRONIC
CS121
5133-00-233-6415INTERCHANGEABLE
DRILL,TWIST

Frequently Asked Questions

What is NSN 5305-00-715-1311?

NSN 5305-00-715-1311 is a Screw,externally Relieved Body, manufactured by Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-715-1311?

NSN 5305-00-715-1311 has 18 cross-referenced part numbers: CS121 (Raytheon Company), 6108SS1032-7 (New Haven Mfg Corp Amatom Electronic Hardware Div), 209-1032P45 (Raytheon Co Equipment Development Lab), CS121 (Raytheon Company Div Corp), 6108SS1032-7 (Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware) and 13 more.

What NSN replaces 5305-00-715-1311?

There are 2 known substitutes for 5305-00-715-1311: 7420-00-134-3700, 5133-00-233-6415. Verify interchangeability with system specifications before substitution.

What are the specifications of 448-SS-20?

Key specifications for 448-SS-20: Surface Treatment: PASSIVATE OVERALL; Thread Class: 2A A; Thread Series Designator: UNF; First Diameter From Head: 0.130 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-715-1311 still in active supply?

NSN 5305-00-715-1311 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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