PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R418P1ANut,self-Locking,extended Washer

General Electric Company · NSN 5310-00-942-6854 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-942-6854 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-942-6854. Primary manufacturer part number: R418P1A.
Features
  • Nut,self-Locking,extended Washer — FSC 5310
  • Thread Direction: RIGHT-HAND
  • Nut Style: DOUBLE HEXAGON
  • Thread Class: 3B
  • Nominal Thread Size: 0.250 INCHES IN
  • Material: STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL
  • Material Document and Classification: AMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
  • Precious Material: SILVER
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303 or Steel Comp 303SE or Steel Comp 303 Plus X Overall construction
General Description

The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-942-6854, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Electric Company. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-942-6854
Primary Part NumberR418P1A
Item NameNut,self-Locking,extended Washer
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGeneral Electric Company
StatusCANCELLED
Thread DirectionRIGHT-HAND
Nut StyleDOUBLE HEXAGON
Thread Class3B
Nominal Thread Size0.250 INCHES IN
MaterialSTEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 303 PLUS X OVERALL
Material Document and ClassificationAMS 5640 ASSN STD ALL MATERIAL RESPONSES OVERALL
Precious MaterialSILVER
Washer Thickness0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
Washer Outside Diameter0.443 INCHES MAXIMUM IN
Locking FeaturePREVAILING TORQUE ALL METAL DESIGN
Surface TreatmentSILVER OVERALL
Surface Treatment Document and ClassificationAMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Thread SeriesUNF
Temp Rating800.0 FAHRENHEIT NOMINAL DEGF
Thread Quantity Per Inch28
Width Across Flats0.369 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5310-00-472-882021349 INTERCHANGEABLE
Nut,self-Locking,extended Washer
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
Cross-Reference Index
Part NumberManufacturer
R418P1A General Electric Company (USA)
SL4906-428 Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace (USA)
70Z1835-048 Sps Technologies, Llc Dba PB Fasteners (USA)
SL4906-428 Republic Fastener Mfg. Corp. Use CAGE Code 52828 for Cataloging. (USA)
SL4906-428 Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems (USA)
R418P1 General Electric Company (USA)
70Z1835-048 Harvard Industries Inc (USA)
Related Parts
5310-00-472-8820INTERCHANGEABLE
NUT,SELF-LOCKING,EXTENDED WASHER
21349

Frequently Asked Questions

What is NSN 5310-00-942-6854?

NSN 5310-00-942-6854 is a Nut,self-Locking,extended Washer, manufactured by General Electric Company, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-942-6854?

NSN 5310-00-942-6854 has 7 cross-referenced part numbers: R418P1A (General Electric Company), SL4906-428 (Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace), 70Z1835-048 (Sps Technologies, Llc Dba PB Fasteners), SL4906-428 (Republic Fastener Mfg. Corp. Use CAGE Code 52828 for Cataloging.), SL4906-428 (Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems) and 2 more.

What NSN replaces 5310-00-942-6854?

There is 1 known substitute for 5310-00-942-6854: 5310-00-472-8820. Verify interchangeability with system specifications before substitution.

What are the specifications of R418P1A?

Key specifications for R418P1A: Thread Direction: RIGHT-HAND; Nut Style: DOUBLE HEXAGON; Thread Class: 3B; Nominal Thread Size: 0.250 INCHES IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-942-6854 still in active supply?

NSN 5310-00-942-6854 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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