PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3H1918N20Nut,plain,slotted,hexagon

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5310-00-424-7429 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-424-7429 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-424-7429. Primary manufacturer part number: 3H1918N20.
Features
  • Nut,plain,slotted,hexagon — FSC 5310
  • Features Provided: CASEHARDENED
  • Thread Class: 3B
  • Nut Counterbore Depth: 0.250 INCHES NOMINAL NUT IN
  • Thread Series: UNF
  • Width Across Flats: 1.125 INCHES NOMINAL IN
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Nut Height: 1.000 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1115 Overall construction
General Description

The Nut,plain,slotted,hexagon, cataloged under National Stock Number 5310-00-424-7429, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 15 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
NSN5310-00-424-7429
Primary Part Number3H1918N20
Item NameNut,plain,slotted,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusACTIVE
Features ProvidedCASEHARDENED
Thread Class3B
Nut Counterbore Depth0.250 INCHES NOMINAL NUT IN
Thread SeriesUNF
Width Across Flats1.125 INCHES NOMINAL IN
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Nut Height1.000 INCHES NOMINAL IN
Counterbore Diameter0.766 INCHES NOMINAL NUT IN
Bearing Surface TypeWASHER FACED
Nut StyleSLOTTED, HEXAGON
Thread Quantity Per Inch16
MaterialSTEEL COMP 1115 OVERALL
Nominal Thread Size0.750 INCHES IN
Hardness Rating32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
Thread DirectionRIGHT-HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-275-185381328502 INTERCHANGEABLE
Nut,plain,slotted,hexagon
Fairbanks Morse, Llc
Cross-Reference Index
Part NumberManufacturer
428699 Wabco Construction and Mining Equipment Group Indianapolis Plant an American Standard Inc Co (USA)
39423D Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
3H1918N20 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
Related Parts
5310-00-275-1853INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
81328502

Frequently Asked Questions

What is NSN 5310-00-424-7429?

NSN 5310-00-424-7429 is a Nut,plain,slotted,hexagon, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-424-7429?

NSN 5310-00-424-7429 has 3 cross-referenced part numbers: 428699 (Wabco Construction and Mining Equipment Group Indianapolis Plant an American Standard Inc Co), 39423D (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 3H1918N20 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir).

What NSN replaces 5310-00-424-7429?

There is 1 known substitute for 5310-00-424-7429: 5310-00-275-1853. Verify interchangeability with system specifications before substitution.

What are the specifications of 3H1918N20?

Key specifications for 3H1918N20: Features Provided: CASEHARDENED; Thread Class: 3B; Nut Counterbore Depth: 0.250 INCHES NOMINAL NUT IN; Thread Series: UNF. 15 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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