PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

312580Screw,cap,socket Head

Eaton Aerospace, Llc Dba Jackson South · NSN 5305-00-136-2886 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-136-2886 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-136-2886. Primary manufacturer part number: 312580.
Features
  • Screw,cap,socket Head — FSC 5305
  • Fastener Length: 0.375 INCHES NOMINAL IN
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
  • Thread Series Designator: UNF
  • Hole Configuration Style: ROUND
  • Material: STEEL OVERALL
  • Thread Direction: RIGHT-HAND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-136-2886, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 19 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
NSN5305-00-136-2886
Primary Part Number312580
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerEaton Aerospace, Llc Dba Jackson South
StatusACTIVE
Fastener Length0.375 INCHES NOMINAL IN
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Hardness Rating36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
Thread Series DesignatorUNF
Hole Configuration StyleROUND
MaterialSTEEL OVERALL
Thread DirectionRIGHT-HAND
Hole Diameter0.036 INCHES NOMINAL IN
Head StyleFLAT CHAMFER
Hole Quantity1
Thread Quantity Per Inch40
Nominal Thread Diameter0.138 INCHES IN
Hole TypeDRILLED
Thread Length0.325 INCHES MINIMUM IN
Internal Drive StyleHEXAGON
Thread Class3A A
Width Across Flats0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM IN
Head Height0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
Head Diameter0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5905-00-139-2456312580 INTERCHANGEABLE
Resistor,fixed,wire Wound
Telemechanics Inc
5905-00-975-1128 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Cross-Reference Index
Part NumberManufacturer
312580 PRIMARY Eaton Aerospace, Llc Dba Jackson South (USA)
Related Parts
5905-00-139-2456INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
312580
5905-00-975-1128INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT

Frequently Asked Questions

What is NSN 5305-00-136-2886?

NSN 5305-00-136-2886 is a Screw,cap,socket Head, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-136-2886?

NSN 5305-00-136-2886 has 1 cross-referenced part number: 312580 (Eaton Aerospace, Llc Dba Jackson South).

What NSN replaces 5305-00-136-2886?

There are 2 known substitutes for 5305-00-136-2886: 5905-00-139-2456, 5905-00-975-1128. Verify interchangeability with system specifications before substitution.

What are the specifications of 312580?

Key specifications for 312580: Fastener Length: 0.375 INCHES NOMINAL IN; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL; Thread Series Designator: UNF. 19 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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