PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

870888Screw,cap,socket Head

Eaton Aerospace, Llc Dba Jackson South · NSN 5305-00-001-5017 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-001-5017 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-001-5017. Primary manufacturer part number: 870888.
Features
  • Screw,cap,socket Head — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL COMP 1016 OVERALL
  • Width Across Flats: 0.377 INCHES NOMINAL IN
  • Hardness Rating: 39.8 ROCKWELL C MINIMUM AND 42.3 ROCKWELL C MAXIMUM OVERALL
  • Head Style: KNURLED NO. 1
  • Thread Quantity Per Inch: 20
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1016 Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-001-5017, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-001-5017
Primary Part Number870888
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerEaton Aerospace, Llc Dba Jackson South
StatusACTIVE
Thread DirectionRIGHT-HAND
Material Document and ClassificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 1016 OVERALL
Width Across Flats0.377 INCHES NOMINAL IN
Hardness Rating39.8 ROCKWELL C MINIMUM AND 42.3 ROCKWELL C MAXIMUM OVERALL
Head StyleKNURLED NO. 1
Thread Quantity Per Inch20
Head Diameter0.648 INCHES NOMINAL IN
Surface TreatmentPHOSPHATE OVERALL
Fastener Length0.945 INCHES NOMINAL IN
Locking FeatureSTRIP THREADS
Thread Series DesignatorUNF
Head Height0.490 INCHES NOMINAL IN
Thread Class2A A
Thread Length0.845 INCHES MINIMUM AND 0.945 INCHES MAXIMUM IN
Internal Drive StyleHEXAGON
Nominal Thread Diameter0.437 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5305-00-151-2948 INTERCHANGEABLE
Screw,machine
6240-00-761-2135LTX363 INTERCHANGEABLE
Lamp,incandescent
Lamptronix Co Ltd
2540-01-069-6690870888 INTERCHANGEABLE
Belt,vehicular Safety
Cnh Industrial America Llc Dba Cnh America
Cross-Reference Index
Part NumberManufacturer
870888 Eaton Aerospace, Llc Dba Jackson South (USA)
870888 Eaton Aerospace, Llc Dba Jackson South (USA)
870377 Eaton Aerospace, Llc Dba Jackson South (USA)
Related Parts
5305-00-151-2948INTERCHANGEABLE
SCREW,MACHINE
6240-00-761-2135INTERCHANGEABLE
LAMP,INCANDESCENT
LTX363
2540-01-069-6690INTERCHANGEABLE
BELT,VEHICULAR SAFETY
870888

Frequently Asked Questions

What is NSN 5305-00-001-5017?

NSN 5305-00-001-5017 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 5305-00-001-5017?

NSN 5305-00-001-5017 has 3 cross-referenced part numbers: 870888 (Eaton Aerospace, Llc Dba Jackson South), 870888 (Eaton Aerospace, Llc Dba Jackson South), 870377 (Eaton Aerospace, Llc Dba Jackson South).

What NSN replaces 5305-00-001-5017?

There are 3 known substitutes for 5305-00-001-5017: 5305-00-151-2948, 6240-00-761-2135, 2540-01-069-6690. Verify interchangeability with system specifications before substitution.

What are the specifications of 870888?

Key specifications for 870888: Thread Direction: RIGHT-HAND; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Material: STEEL COMP 1016 OVERALL; Width Across Flats: 0.377 INCHES NOMINAL IN. 17 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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