PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BECX3N1Washer,lock

NSN 5310-00-013-1139 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-013-1139 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-013-1139. Primary manufacturer part number: BECX3N1.
Features
  • Washer,lock — FSC 5310
  • Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Nondefinitive Spec/std Data: 3 STYLE AND A CLASS
  • Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Surface Treatment Document and Classification: QQ-P-416,TY 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 2ND TREATMENT RESPONSE OVERALL
  • Material Thickness: 0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
  • Hole Diameter: 0.573 INCHES MINIMUM AND 0.595 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-013-1139, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-013-1139
Primary Part NumberBECX3N1
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
StatusCANCELLED
Material Document and ClassificationFED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Nondefinitive Spec/std Data3 STYLE AND A CLASS
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
Style DesignatorSPLIT HELICAL-RIGHT HAND
Surface Treatment Document and ClassificationQQ-P-416,TY 2 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 2ND TREATMENT RESPONSE OVERALL
Material Thickness0.170 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
Hole Diameter0.573 INCHES MINIMUM AND 0.595 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OR ZINC OVERALL
MaterialSTEEL OVERALL
Outside Diameter0.989 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-010-8579 INTERCHANGEABLE
Washer,lock
5310-00-012-0638 INTERCHANGEABLE
Washer,lock
5310-00-013-1084 INTERCHANGEABLE
Washer,lock
5310-00-013-1095830 INTERCHANGEABLE
Washer,lock
John Deer Consumer Products Inc
5310-00-013-109612X544 INTERCHANGEABLE
Washer,lock
Napco International Llc Dba Napco International Inc
5310-00-013-1097 INTERCHANGEABLE
Washer,lock
5310-00-013-1098 INTERCHANGEABLE
Washer,lock
5310-00-013-1116 INTERCHANGEABLE
Washer,lock
5310-00-013-1121 INTERCHANGEABLE
Washer,lock
5310-00-013-1140 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
BECX3N1 CAGE 00000
FFW84CLASSASTYLE3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS35339-30 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
131139 General Motors Corp (USA)
Related Parts
5310-00-010-8579INTERCHANGEABLE
WASHER,LOCK
5310-00-012-0638INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1084INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1095INTERCHANGEABLE
WASHER,LOCK
830
5310-00-013-1096INTERCHANGEABLE
WASHER,LOCK
12X544
5310-00-013-1097INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1098INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1116INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1121INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1140INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1141INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1142INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-013-1139?

NSN 5310-00-013-1139 is a Washer,lock, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-013-1139?

NSN 5310-00-013-1139 has 4 cross-referenced part numbers: BECX3N1, FFW84CLASSASTYLE3 (Federal Specifications Promulgated by General Services Administration Washington DC), MS35339-30 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 131139 (General Motors Corp).

What NSN replaces 5310-00-013-1139?

There are 12 known substitutes for 5310-00-013-1139: 5310-00-010-8579, 5310-00-012-0638, 5310-00-013-1084 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of BECX3N1?

Key specifications for BECX3N1: Material Document and Classification: FED STD 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Nondefinitive Spec/std Data: 3 STYLE AND A CLASS; Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM; Style Designator: SPLIT HELICAL-RIGHT HAND. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-013-1139 still in active supply?

NSN 5310-00-013-1139 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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